393472974 has 16 divisors (see below), whose sum is σ = 787202640. Its totient is φ = 131114880.

The previous prime is 393472969. The next prime is 393472991. The reversal of 393472974 is 479274393.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13414 + ... + 31094.

It is an arithmetic number, because the mean of its divisors is an integer number (49200165).

Almost surely, 2^393472974 is an apocalyptic number.

393472974 is an abundant number, since it is smaller than the sum of its proper divisors (393729666).

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

393472974 is a wasteful number, since it uses less digits than its factorization.

393472974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21395.

The product of its digits is 1143072, while the sum is 48.

The square root of 393472974 is about 19836.1532056999. The cubic root of 393472974 is about 732.7766734703.

The spelling of 393472974 in words is "three hundred ninety-three million, four hundred seventy-two thousand, nine hundred seventy-four".