399801144904 has 64 divisors (see below), whose sum is σ = 887818320000. Its totient is φ = 165143827968.

The previous prime is 399801144893. The next prime is 399801144931. The reversal of 399801144904 is 409441108993.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 707727 + ... + 1140385.

It is an arithmetic number, because the mean of its divisors is an integer number (13872161250).

Almost surely, 2^399801144904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 399801144904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443909160000).

399801144904 is an abundant number, since it is smaller than the sum of its proper divisors (488017175096).

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

399801144904 is a wasteful number, since it uses less digits than its factorization.

399801144904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433270 (or 433266 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 52.

The spelling of 399801144904 in words is "three hundred ninety-nine billion, eight hundred one million, one hundred forty-four thousand, nine hundred four".