394576272 has 50 divisors (see below), whose sum is σ = 1142021958. Its totient is φ = 131524992.

The previous prime is 394576253. The next prime is 394576283. The reversal of 394576272 is 272675493.

394576272 is a `hidden beast` number, since 3 + 9 + 4 + 576 + 2 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 372335616 + 22240656 = 19296^2 + 4716^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 150933 + ... + 153524.

Almost surely, 2^394576272 is an apocalyptic number.

It is an amenable number.

394576272 is an abundant number, since it is smaller than the sum of its proper divisors (747445686).

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

394576272 is a wasteful number, since it uses less digits than its factorization.

394576272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304477 (or 304462 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 394576272 is about 19863.9440192526. The cubic root of 394576272 is about 733.4609361057.

The spelling of 394576272 in words is "three hundred ninety-four million, five hundred seventy-six thousand, two hundred seventy-two".