90544920 has 64 divisors (see below), whose sum is σ = 278989920. Its totient is φ = 23491584.

The previous prime is 90544897. The next prime is 90544921. The reversal of 90544920 is 2944509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90544921) 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 15 ways as a sum of consecutive naturals, for example, 5757 + ... + 14636.

Almost surely, 2^90544920 is an apocalyptic number.

It is an amenable number.

90544920 is an abundant number, since it is smaller than the sum of its proper divisors (188445000).

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

90544920 is a wasteful number, since it uses less digits than its factorization.

90544920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20444 (or 20440 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 90544920 is about 9515.5094451112. The cubic root of 90544920 is about 449.0431024605.

The spelling of 90544920 in words is "ninety million, five hundred forty-four thousand, nine hundred twenty".