399950032 has 10 divisors (see below), whose sum is σ = 774903218. Its totient is φ = 199975008.

The previous prime is 399950021. The next prime is 399950063. The reversal of 399950032 is 230059993.

It can be written as a sum of positive squares in only one way, i.e., 347300496 + 52649536 = 18636^2 + 7256^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12498423 + ... + 12498454.

Almost surely, 2^399950032 is an apocalyptic number.

It is an amenable number.

399950032 is a deficient number, since it is larger than the sum of its proper divisors (374953186).

399950032 is a wasteful number, since it uses less digits than its factorization.

399950032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24996885 (or 24996879 counting only the distinct ones).

The product of its (nonzero) digits is 65610, while the sum is 40.

The square root of 399950032 is about 19998.7507609850. The cubic root of 399950032 is about 736.7756178361.

The spelling of 399950032 in words is "three hundred ninety-nine million, nine hundred fifty thousand, thirty-two".