2315254440 has 64 divisors (see below), whose sum is σ = 7185283200. Its totient is φ = 596110592.

The previous prime is 2315254439. The next prime is 2315254453. The reversal of 2315254440 is 444525132.

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 = 2315254398 and 2315254407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329172 + ... + 336131.

It is an arithmetic number, because the mean of its divisors is an integer number (112270050).

Almost surely, 2^2315254440 is an apocalyptic number.

2315254440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2315254440 is an abundant number, since it is smaller than the sum of its proper divisors (4870028760).

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

2315254440 is a wasteful number, since it uses less digits than its factorization.

2315254440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665346 (or 665342 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2315254440 is about 48117.0909345110. The cubic root of 2315254440 is about 1322.9179480504.

Adding to 2315254440 its reverse (444525132), we get a palindrome (2759779572).

The spelling of 2315254440 in words is "two billion, three hundred fifteen million, two hundred fifty-four thousand, four hundred forty".