900849444 has 24 divisors (see below), whose sum is σ = 2293071648. Its totient is φ = 272984640.

The previous prime is 900849437. The next prime is 900849449. The reversal of 900849444 is 444948009.

It is a junction number, because it is equal to n+sod(n) for n = 900849396 and 900849405.

It is not an unprimeable number, because it can be changed into a prime (900849449) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3412177 + ... + 3412440.

It is an arithmetic number, because the mean of its divisors is an integer number (95544652).

Almost surely, 2^900849444 is an apocalyptic number.

It is an amenable number.

900849444 is an abundant number, since it is smaller than the sum of its proper divisors (1392222204).

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

900849444 is a wasteful number, since it uses less digits than its factorization.

900849444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6824635 (or 6824633 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 900849444 is about 30014.1540610426. The cubic root of 900849444 is about 965.7930406353.

The spelling of 900849444 in words is "nine hundred million, eight hundred forty-nine thousand, four hundred forty-four".