315241432 has 64 divisors (see below), whose sum is σ = 661155840. Its totient is φ = 139708800.

The previous prime is 315241429. The next prime is 315241447. The reversal of 315241432 is 234142513.

It is a junction number, because it is equal to n+sod(n) for n = 315241397 and 315241406.

It is a congruent number.

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, 748582 + ... + 749002.

It is an arithmetic number, because the mean of its divisors is an integer number (10330560).

Almost surely, 2^315241432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315241432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330577920).

315241432 is an abundant number, since it is smaller than the sum of its proper divisors (345914408).

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

315241432 is a wasteful number, since it uses less digits than its factorization.

315241432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 628 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 315241432 is about 17755.0396225973. The cubic root of 315241432 is about 680.5830005961.

Adding to 315241432 its reverse (234142513), we get a palindrome (549383945).

The spelling of 315241432 in words is "three hundred fifteen million, two hundred forty-one thousand, four hundred thirty-two".