315783780 has 48 divisors (see below), whose sum is σ = 952211904. Its totient is φ = 77731200.

The previous prime is 315783773. The next prime is 315783817. The reversal of 315783780 is 87387513.

It is a super-2 number, since 2×315783780² = 199438791422176800, which contains 22 as substring.

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, 201646 + ... + 203205.

It is an arithmetic number, because the mean of its divisors is an integer number (19837748).

Almost surely, 2^315783780 is an apocalyptic number.

315783780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

315783780 is an abundant number, since it is smaller than the sum of its proper divisors (636428124).

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

315783780 is a wasteful number, since it uses less digits than its factorization.

315783780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404876 (or 404874 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 315783780 is about 17770.3061312967. The cubic root of 315783780 is about 680.9730734285.

The spelling of 315783780 in words is "three hundred fifteen million, seven hundred eighty-three thousand, seven hundred eighty".