900219956 has 6 divisors (see below), whose sum is σ = 1575384930. Its totient is φ = 450109976.

The previous prime is 900219941. The next prime is 900219961. The reversal of 900219956 is 659912009.

It can be written as a sum of positive squares in only one way, i.e., 837176356 + 63043600 = 28934^2 + 7940^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112527491 + ... + 112527498.

It is an arithmetic number, because the mean of its divisors is an integer number (262564155).

Almost surely, 2^900219956 is an apocalyptic number.

It is an amenable number.

900219956 is a deficient number, since it is larger than the sum of its proper divisors (675164974).

900219956 is a wasteful number, since it uses less digits than its factorization.

900219956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225054993 (or 225054991 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 41.

The square root of 900219956 is about 30003.6657093762. The cubic root of 900219956 is about 965.5680319705.

The spelling of 900219956 in words is "nine hundred million, two hundred nineteen thousand, nine hundred fifty-six".