900443028 has 48 divisors (see below), whose sum is σ = 2138237696. Its totient is φ = 294865920.

The previous prime is 900443017. The next prime is 900443111. The reversal of 900443028 is 820344009.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 900442986 and 900443004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235500 + ... + 239292.

Almost surely, 2^900443028 is an apocalyptic number.

It is an amenable number.

900443028 is an abundant number, since it is smaller than the sum of its proper divisors (1237794668).

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

900443028 is a wasteful number, since it uses less digits than its factorization.

900443028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4144 (or 4142 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 900443028 is about 30007.3828915485. The cubic root of 900443028 is about 965.6477804075.

The spelling of 900443028 in words is "nine hundred million, four hundred forty-three thousand, twenty-eight".