2312556240 has 160 divisors (see below), whose sum is σ = 7796286720. Its totient is φ = 564682752.

The previous prime is 2312556227. The next prime is 2312556241. The reversal of 2312556240 is 426552132.

2312556240 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2312556198 and 2312556207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312556241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143301 + ... + 158619.

It is an arithmetic number, because the mean of its divisors is an integer number (48726792).

Almost surely, 2^2312556240 is an apocalyptic number.

2312556240 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 2312556240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3898143360).

2312556240 is an abundant number, since it is smaller than the sum of its proper divisors (5483730480).

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

2312556240 is a wasteful number, since it uses less digits than its factorization.

2312556240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15389 (or 15383 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 2312556240 is about 48089.0449062986. The cubic root of 2312556240 is about 1322.4038382869.

The spelling of 2312556240 in words is "two billion, three hundred twelve million, five hundred fifty-six thousand, two hundred forty".