900899144 has 16 divisors (see below), whose sum is σ = 1762629120. Its totient is φ = 430864720.

The previous prime is 900899137. The next prime is 900899159. The reversal of 900899144 is 441998009.

It is a junction number, because it is equal to n+sod(n) for n = 900899095 and 900899104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2447912 + ... + 2448279.

It is an arithmetic number, because the mean of its divisors is an integer number (110164320).

Almost surely, 2^900899144 is an apocalyptic number.

It is an amenable number.

900899144 is a deficient number, since it is larger than the sum of its proper divisors (861729976).

900899144 is a wasteful number, since it uses less digits than its factorization.

900899144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4896220 (or 4896216 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 900899144 is about 30014.9819923318. The cubic root of 900899144 is about 965.8108012914.

The spelling of 900899144 in words is "nine hundred million, eight hundred ninety-nine thousand, one hundred forty-four".