399925702 has 32 divisors (see below), whose sum is σ = 685117440. Its totient is φ = 173310720.

The previous prime is 399925693. The next prime is 399925703. The reversal of 399925702 is 207529993.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399925703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177499 + ... + 179737.

It is an arithmetic number, because the mean of its divisors is an integer number (21409920).

Almost surely, 2^399925702 is an apocalyptic number.

399925702 is a deficient number, since it is larger than the sum of its proper divisors (285191738).

399925702 is a wasteful number, since it uses less digits than its factorization.

399925702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628.

The product of its (nonzero) digits is 306180, while the sum is 46.

The square root of 399925702 is about 19998.1424637390. The cubic root of 399925702 is about 736.7606775412.

The spelling of 399925702 in words is "three hundred ninety-nine million, nine hundred twenty-five thousand, seven hundred two".