399001732 has 24 divisors (see below), whose sum is σ = 711329472. Its totient is φ = 195780000.

The previous prime is 399001717. The next prime is 399001739. The reversal of 399001732 is 237100993.

It is not an unprimeable number, because it can be changed into a prime (399001739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121107 + ... + 124357.

It is an arithmetic number, because the mean of its divisors is an integer number (29638728).

Almost surely, 2^399001732 is an apocalyptic number.

It is an amenable number.

399001732 is a deficient number, since it is larger than the sum of its proper divisors (312327740).

399001732 is a wasteful number, since it uses less digits than its factorization.

399001732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3819 (or 3817 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 399001732 is about 19975.0277096178. The cubic root of 399001732 is about 736.1928473271.

The spelling of 399001732 in words is "three hundred ninety-nine million, one thousand, seven hundred thirty-two".