315315440 has 40 divisors (see below), whose sum is σ = 799756848. Its totient is φ = 114659840.

The previous prime is 315315437. The next prime is 315315457. The reversal of 315315440 is 44513513.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178277 + ... + 180036.

Almost surely, 2^315315440 is an apocalyptic number.

It is an amenable number.

315315440 is an abundant number, since it is smaller than the sum of its proper divisors (484441408).

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

315315440 is a wasteful number, since it uses less digits than its factorization.

315315440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358337 (or 358331 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 315315440 is about 17757.1236409504. The cubic root of 315315440 is about 680.6362556999.

Adding to 315315440 its reverse (44513513), we get a palindrome (359828953).

The spelling of 315315440 in words is "three hundred fifteen million, three hundred fifteen thousand, four hundred forty".