90005444 has 24 divisors (see below), whose sum is σ = 165715200. Its totient is φ = 42711200.

The previous prime is 90005441. The next prime is 90005467. The reversal of 90005444 is 44450009.

It is not an unprimeable number, because it can be changed into a prime (90005441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269 + ... + 13419.

It is an arithmetic number, because the mean of its divisors is an integer number (6904800).

Almost surely, 2^90005444 is an apocalyptic number.

It is an amenable number.

90005444 is a deficient number, since it is larger than the sum of its proper divisors (75709756).

90005444 is a wasteful number, since it uses less digits than its factorization.

90005444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13243 (or 13241 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 90005444 is about 9487.1199001594. The cubic root of 90005444 is about 448.1495103133.

The spelling of 90005444 in words is "ninety million, five thousand, four hundred forty-four".