399541704 has 32 divisors (see below), whose sum is σ = 1015232640. Its totient is φ = 130996800.

The previous prime is 399541693. The next prime is 399541711. The reversal of 399541704 is 407145993.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134992 + ... + 137919.

It is an arithmetic number, because the mean of its divisors is an integer number (31726020).

Almost surely, 2^399541704 is an apocalyptic number.

It is an amenable number.

399541704 is an abundant number, since it is smaller than the sum of its proper divisors (615690936).

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

399541704 is a wasteful number, since it uses less digits than its factorization.

399541704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272981 (or 272977 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 399541704 is about 19988.5393163182. The cubic root of 399541704 is about 736.5247960407.

The spelling of 399541704 in words is "three hundred ninety-nine million, five hundred forty-one thousand, seven hundred four".