315240426 has 96 divisors (see below), whose sum is σ = 731427840. Its totient is φ = 97977600.

The previous prime is 315240383. The next prime is 315240437. The reversal of 315240426 is 624042513.

It is a super-2 number, since 2×315240426² = 198753052369322952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 315240426.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2892060 + ... + 2892168.

It is an arithmetic number, because the mean of its divisors is an integer number (7619040).

Almost surely, 2^315240426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315240426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365713920).

315240426 is an abundant number, since it is smaller than the sum of its proper divisors (416187414).

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

315240426 is a wasteful number, since it uses less digits than its factorization.

315240426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 315240426 is about 17755.0112925900. The cubic root of 315240426 is about 680.5822766354.

Adding to 315240426 its reverse (624042513), we get a palindrome (939282939).

The spelling of 315240426 in words is "three hundred fifteen million, two hundred forty thousand, four hundred twenty-six".