399104748 has 36 divisors (see below), whose sum is σ = 1152970000. Its totient is φ = 114029856.

The previous prime is 399104711. The next prime is 399104759. The reversal of 399104748 is 847401993.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×399104748² = 318569199752287008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 791623 + ... + 792126.

Almost surely, 2^399104748 is an apocalyptic number.

It is an amenable number.

399104748 is an abundant number, since it is smaller than the sum of its proper divisors (753865252).

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

399104748 is a wasteful number, since it uses less digits than its factorization.

399104748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583766 (or 1583761 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 399104748 is about 19977.6061629015. The cubic root of 399104748 is about 736.2561996974.

The spelling of 399104748 in words is "three hundred ninety-nine million, one hundred four thousand, seven hundred forty-eight".