399008052 has 48 divisors (see below), whose sum is σ = 1035619200. Its totient is φ = 132854400.

The previous prime is 399008047. The next prime is 399008081. The reversal of 399008052 is 250800993.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 399007998 and 399008016.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 141052 + ... + 143852.

It is an arithmetic number, because the mean of its divisors is an integer number (21575400).

Almost surely, 2^399008052 is an apocalyptic number.

It is an amenable number.

399008052 is an abundant number, since it is smaller than the sum of its proper divisors (636611148).

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

399008052 is a wasteful number, since it uses less digits than its factorization.

399008052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4133 (or 4125 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 399008052 is about 19975.1859065191. The cubic root of 399008052 is about 736.1967342895.

The spelling of 399008052 in words is "three hundred ninety-nine million, eight thousand, fifty-two".