899920044 has 30 divisors (see below), whose sum is σ = 2352569604. Its totient is φ = 299973240.

The previous prime is 899920033. The next prime is 899920051. The reversal of 899920044 is 440029998.

899920044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1388442 + ... + 1389089.

Almost surely, 2^899920044 is an apocalyptic number.

It is an amenable number.

899920044 is an abundant number, since it is smaller than the sum of its proper divisors (1452649560).

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

899920044 is a wasteful number, since it uses less digits than its factorization.

899920044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777547 (or 2777536 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 899920044 is about 29998.6673704016. The cubic root of 899920044 is about 965.4607923999.

The spelling of 899920044 in words is "eight hundred ninety-nine million, nine hundred twenty thousand, forty-four".