315564774 has 64 divisors (see below), whose sum is σ = 738656256. Its totient is φ = 88016544.

The previous prime is 315564763. The next prime is 315564797. The reversal of 315564774 is 477465513.

It is a happy number.

315564774 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×315564774² = 199162253179342152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 356937 + ... + 357819.

It is an arithmetic number, because the mean of its divisors is an integer number (11541504).

Almost surely, 2^315564774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315564774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369328128).

315564774 is an abundant number, since it is smaller than the sum of its proper divisors (423091482).

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

315564774 is a wasteful number, since it uses less digits than its factorization.

315564774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089.

The product of its digits is 352800, while the sum is 42.

The square root of 315564774 is about 17764.1429289454. The cubic root of 315564774 is about 680.8156115946.

The spelling of 315564774 in words is "three hundred fifteen million, five hundred sixty-four thousand, seven hundred seventy-four".