399162444 has 24 divisors (see below), whose sum is σ = 934678080. Its totient is φ = 132582864.

The previous prime is 399162433. The next prime is 399162457. The reversal of 399162444 is 444261993.

It is a junction number, because it is equal to n+sod(n) for n = 399162396 and 399162405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55374 + ... + 62165.

It is an arithmetic number, because the mean of its divisors is an integer number (38944920).

Almost surely, 2^399162444 is an apocalyptic number.

It is an amenable number.

399162444 is an abundant number, since it is smaller than the sum of its proper divisors (535515636).

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

399162444 is a wasteful number, since it uses less digits than its factorization.

399162444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117829 (or 117827 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 399162444 is about 19979.0501275711. The cubic root of 399162444 is about 736.2916765917.

The spelling of 399162444 in words is "three hundred ninety-nine million, one hundred sixty-two thousand, four hundred forty-four".