399536974 has 8 divisors (see below), whose sum is σ = 599404320. Its totient is φ = 199735536.

The previous prime is 399536953. The next prime is 399536981. The reversal of 399536974 is 479635993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3547 + ... + 28489.

It is an arithmetic number, because the mean of its divisors is an integer number (74925540).

Almost surely, 2^399536974 is an apocalyptic number.

399536974 is a deficient number, since it is larger than the sum of its proper divisors (199867346).

399536974 is a wasteful number, since it uses less digits than its factorization.

399536974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32954.

The product of its digits is 5511240, while the sum is 55.

The square root of 399536974 is about 19988.4209981679. The cubic root of 399536974 is about 736.5218895640.

The spelling of 399536974 in words is "three hundred ninety-nine million, five hundred thirty-six thousand, nine hundred seventy-four".