399570004 has 12 divisors (see below), whose sum is σ = 723359700. Its totient is φ = 192895808.

The previous prime is 399569959. The next prime is 399570011. The reversal of 399570004 is 400075993.

It can be written as a sum of positive squares in 2 ways, for example, as 234396100 + 165173904 = 15310^2 + 12852^2 .

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, 1722169 + ... + 1722400.

It is an arithmetic number, because the mean of its divisors is an integer number (60279975).

Almost surely, 2^399570004 is an apocalyptic number.

It is an amenable number.

399570004 is a deficient number, since it is larger than the sum of its proper divisors (323789696).

399570004 is a wasteful number, since it uses less digits than its factorization.

399570004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3444602 (or 3444600 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 399570004 is about 19989.2472094374. The cubic root of 399570004 is about 736.5421852639.

The spelling of 399570004 in words is "three hundred ninety-nine million, five hundred seventy thousand, four".