316507428 has 36 divisors (see below), whose sum is σ = 847124460. Its totient is φ = 99296256.

The previous prime is 316507423. The next prime is 316507459. The reversal of 316507428 is 824705613.

It can be written as a sum of positive squares in 2 ways, for example, as 85710564 + 230796864 = 9258^2 + 15192^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 316507392 and 316507401.

It is not an unprimeable number, because it can be changed into a prime (316507423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257973 + ... + 259196.

It is an arithmetic number, because the mean of its divisors is an integer number (23531235).

Almost surely, 2^316507428 is an apocalyptic number.

It is an amenable number.

316507428 is an abundant number, since it is smaller than the sum of its proper divisors (530617032).

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

316507428 is a wasteful number, since it uses less digits than its factorization.

316507428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517196 (or 517191 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 316507428 is about 17790.6556371596. The cubic root of 316507428 is about 681.4928477081.

The spelling of 316507428 in words is "three hundred sixteen million, five hundred seven thousand, four hundred twenty-eight".