2310638940 has 192 divisors, whose sum is σ = 7502315520. Its totient is φ = 589731840.

The previous prime is 2310638921. The next prime is 2310638959. The reversal of 2310638940 is 498360132.

2310638940 is a `hidden beast` number, since 2 + 3 + 10 + 638 + 9 + 4 + 0 = 666.

2310638940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2310638921) and next prime (2310638959).

It is a super-2 number, since 2×2310638940² = 10678104622088647200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2310638895 and 2310638904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1623069 + ... + 1624491.

It is an arithmetic number, because the mean of its divisors is an integer number (39074560).

Almost surely, 2^2310638940 is an apocalyptic number.

2310638940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2310638940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3751157760).

2310638940 is an abundant number, since it is smaller than the sum of its proper divisors (5191676580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2310638940 is a wasteful number, since it uses less digits than its factorization.

2310638940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569 (or 1561 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 2310638940 is about 48069.1058789323. The cubic root of 2310638940 is about 1322.0382765972.

The spelling of 2310638940 in words is "two billion, three hundred ten million, six hundred thirty-eight thousand, nine hundred forty".