315890680 has 32 divisors (see below), whose sum is σ = 812291040. Its totient is φ = 108305280.

The previous prime is 315890677. The next prime is 315890689. The reversal of 315890680 is 86098513.

It is a happy number.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315890689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563811 + ... + 564370.

It is an arithmetic number, because the mean of its divisors is an integer number (25384095).

Almost surely, 2^315890680 is an apocalyptic number.

It is an amenable number.

315890680 is an abundant number, since it is smaller than the sum of its proper divisors (496400360).

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

315890680 is a wasteful number, since it uses less digits than its factorization.

315890680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128199 (or 1128195 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 315890680 is about 17773.3137034150. The cubic root of 315890680 is about 681.0499063896.

The spelling of 315890680 in words is "three hundred fifteen million, eight hundred ninety thousand, six hundred eighty".