899404992 has 168 divisors, whose sum is σ = 2810327120. Its totient is φ = 282009600.

The previous prime is 899404981. The next prime is 899404993. The reversal of 899404992 is 299404998.

899404992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (899404993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 498492 + ... + 500292.

Almost surely, 2^899404992 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 899404992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1405163560).

899404992 is an abundant number, since it is smaller than the sum of its proper divisors (1910922128).

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

899404992 is a wasteful number, since it uses less digits than its factorization.

899404992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856 (or 1823 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The square root of 899404992 is about 29990.0815604093. The cubic root of 899404992 is about 965.2765695860.

The spelling of 899404992 in words is "eight hundred ninety-nine million, four hundred four thousand, nine hundred ninety-two".