399120484 has 27 divisors (see below), whose sum is σ = 813065043. Its totient is φ = 170931768.

The previous prime is 399120473. The next prime is 399120497. The reversal of 399120484 is 484021993.

The square root of 399120484 is 19978.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 278979 + ... + 280405.

Almost surely, 2^399120484 is an apocalyptic number.

399120484 is the 19978-th square number.

It is an amenable number.

399120484 is an abundant number, since it is smaller than the sum of its proper divisors (413944559).

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

399120484 is an equidigital number, since it uses as much as digits as its factorization.

399120484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2872 (or 1436 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The cubic root of 399120484 is about 736.2658760003.

The spelling of 399120484 in words is "three hundred ninety-nine million, one hundred twenty thousand, four hundred eighty-four".