399593064 has 48 divisors (see below), whose sum is σ = 1081749600. Its totient is φ = 122950464.

The previous prime is 399593063. The next prime is 399593071. The reversal of 399593064 is 460395993.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (399593063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45204 + ... + 53315.

It is an arithmetic number, because the mean of its divisors is an integer number (22536450).

Almost surely, 2^399593064 is an apocalyptic number.

It is an amenable number.

399593064 is an abundant number, since it is smaller than the sum of its proper divisors (682156536).

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

399593064 is a wasteful number, since it uses less digits than its factorization.

399593064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98554 (or 98537 counting only the distinct ones).

The product of its (nonzero) digits is 787320, while the sum is 48.

The square root of 399593064 is about 19989.8240112313. The cubic root of 399593064 is about 736.5563541087.

The spelling of 399593064 in words is "three hundred ninety-nine million, five hundred ninety-three thousand, sixty-four".