399504934 has 8 divisors (see below), whose sum is σ = 600593400. Its totient is φ = 199307136.

The previous prime is 399504929. The next prime is 399504949. The reversal of 399504934 is 439405993.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221544 + ... + 223339.

It is an arithmetic number, because the mean of its divisors is an integer number (75074175).

Almost surely, 2^399504934 is an apocalyptic number.

399504934 is a deficient number, since it is larger than the sum of its proper divisors (201088466).

399504934 is a wasteful number, since it uses less digits than its factorization.

399504934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445334.

The product of its (nonzero) digits is 524880, while the sum is 46.

The square root of 399504934 is about 19987.6195180917. The cubic root of 399504934 is about 736.5022011132.

The spelling of 399504934 in words is "three hundred ninety-nine million, five hundred four thousand, nine hundred thirty-four".