899421256 has 32 divisors (see below), whose sum is σ = 1761652800. Its totient is φ = 429689920.

The previous prime is 899421203. The next prime is 899421269. The reversal of 899421256 is 652124998.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 215235 + ... + 219373.

It is an arithmetic number, because the mean of its divisors is an integer number (55051650).

Almost surely, 2^899421256 is an apocalyptic number.

It is an amenable number.

899421256 is a deficient number, since it is larger than the sum of its proper divisors (862231544).

899421256 is a wasteful number, since it uses less digits than its factorization.

899421256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5349 (or 5345 counting only the distinct ones).

The product of its digits is 311040, while the sum is 46.

The square root of 899421256 is about 29990.3527154984. The cubic root of 899421256 is about 965.2823879376.

The spelling of 899421256 in words is "eight hundred ninety-nine million, four hundred twenty-one thousand, two hundred fifty-six".