900442 has 16 divisors (see below), whose sum is σ = 1411200. Its totient is φ = 430560.

The previous prime is 900409. The next prime is 900443. The reversal of 900442 is 244009.

It is not an unprimeable number, because it can be changed into a prime (900443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6409 + ... + 6547.

It is an arithmetic number, because the mean of its divisors is an integer number (88200).

2⁹⁰⁰⁴⁴² is an apocalyptic number.

900442 is a deficient number, since it is larger than the sum of its proper divisors (510758).

900442 is a wasteful number, since it uses less digits than its factorization.

900442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 900442 is about 948.9162239102. The cubic root of 900442 is about 96.5647412927.

The spelling of 900442 in words is "nine hundred thousand, four hundred forty-two".