315233440 has 24 divisors (see below), whose sum is σ = 744739380. Its totient is φ = 126093312.

The previous prime is 315233437. The next prime is 315233441. The reversal of 315233440 is 44332513.

It can be written as a sum of positive squares in 2 ways, for example, as 307371024 + 7862416 = 17532^2 + 2804^2 .

It is not an unprimeable number, because it can be changed into a prime (315233441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 984945 + ... + 985264.

Almost surely, 2^315233440 is an apocalyptic number.

It is an amenable number.

315233440 is an abundant number, since it is smaller than the sum of its proper divisors (429505940).

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

315233440 is a wasteful number, since it uses less digits than its factorization.

315233440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970224 (or 1970216 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 315233440 is about 17754.8145583107. The cubic root of 315233440 is about 680.5772491680.

Adding to 315233440 its reverse (44332513), we get a palindrome (359565953).

The spelling of 315233440 in words is "three hundred fifteen million, two hundred thirty-three thousand, four hundred forty".