899156400 has 60 divisors (see below), whose sum is σ = 2880301512. Its totient is φ = 239774720.

The previous prime is 899156393. The next prime is 899156431. The reversal of 899156400 is 4651998.

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 373449 + ... + 375848.

Almost surely, 2^899156400 is an apocalyptic number.

899156400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

899156400 is an abundant number, since it is smaller than the sum of its proper divisors (1981145112).

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

899156400 is a wasteful number, since it uses less digits than its factorization.

899156400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749318 (or 749307 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 899156400 is about 29985.9367037283. The cubic root of 899156400 is about 965.1876285096.

The spelling of 899156400 in words is "eight hundred ninety-nine million, one hundred fifty-six thousand, four hundred".