399623302 has 16 divisors (see below), whose sum is σ = 645905232. Its totient is φ = 184338720.

The previous prime is 399623299. The next prime is 399623303. The reversal of 399623302 is 203326993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399623303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63477 + ... + 69487.

It is an arithmetic number, because the mean of its divisors is an integer number (40369077).

Almost surely, 2^399623302 is an apocalyptic number.

399623302 is a deficient number, since it is larger than the sum of its proper divisors (246281930).

399623302 is a wasteful number, since it uses less digits than its factorization.

399623302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8583.

The product of its (nonzero) digits is 52488, while the sum is 37.

The square root of 399623302 is about 19990.5803317462. The cubic root of 399623302 is about 736.5749325337.

It can be divided in two parts, 39962 and 3302, that added together give a square (43264 = 208²).

The spelling of 399623302 in words is "three hundred ninety-nine million, six hundred twenty-three thousand, three hundred two".