90051044 has 24 divisors (see below), whose sum is σ = 162616440. Its totient is φ = 43600896.

The previous prime is 90051041. The next prime is 90051077. The reversal of 90051044 is 44015009.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 60217600 + 29833444 = 7760^2 + 5462^2 .

It is not an unprimeable number, because it can be changed into a prime (90051041) 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, 32564 + ... + 35220.

It is an arithmetic number, because the mean of its divisors is an integer number (6775685).

Almost surely, 2^90051044 is an apocalyptic number.

It is an amenable number.

90051044 is a deficient number, since it is larger than the sum of its proper divisors (72565396).

90051044 is a wasteful number, since it uses less digits than its factorization.

90051044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2927 (or 2925 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 90051044 is about 9489.5228541798. The cubic root of 90051044 is about 448.2251804306.

The spelling of 90051044 in words is "ninety million, fifty-one thousand, forty-four".