2315355240 has 128 divisors (see below), whose sum is σ = 7600521600. Its totient is φ = 559595520.

The previous prime is 2315355221. The next prime is 2315355241. The reversal of 2315355240 is 425535132.

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 = 2315355198 and 2315355207.

It is not an unprimeable number, because it can be changed into a prime (2315355241) 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, 463476 + ... + 468444.

It is an arithmetic number, because the mean of its divisors is an integer number (59379075).

Almost surely, 2^2315355240 is an apocalyptic number.

2315355240 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 2315355240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3800260800).

2315355240 is an abundant number, since it is smaller than the sum of its proper divisors (5285166360).

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

2315355240 is a wasteful number, since it uses less digits than its factorization.

2315355240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5347 (or 5343 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 2315355240 is about 48118.1383679793. The cubic root of 2315355240 is about 1322.9371465442.

The spelling of 2315355240 in words is "two billion, three hundred fifteen million, three hundred fifty-five thousand, two hundred forty".