317628072 has 24 divisors (see below), whose sum is σ = 860242890. Its totient is φ = 105876000.

The previous prime is 317628067. The next prime is 317628083. The reversal of 317628072 is 270826713.

It can be written as a sum of positive squares in only one way, i.e., 298391076 + 19236996 = 17274^2 + 4386^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2205679 + ... + 2205822.

Almost surely, 2^317628072 is an apocalyptic number.

It is an amenable number.

317628072 is an abundant number, since it is smaller than the sum of its proper divisors (542614818).

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

317628072 is a wasteful number, since it uses less digits than its factorization.

317628072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4411513 (or 4411506 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 317628072 is about 17822.1231058480. The cubic root of 317628072 is about 682.2962109431.

The spelling of 317628072 in words is "three hundred seventeen million, six hundred twenty-eight thousand, seventy-two".