90413844 has 24 divisors (see below), whose sum is σ = 212136288. Its totient is φ = 29970720.

The previous prime is 90413833. The next prime is 90413863. The reversal of 90413844 is 44831409.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 18642 + ... + 22985.

It is an arithmetic number, because the mean of its divisors is an integer number (8839012).

Almost surely, 2^90413844 is an apocalyptic number.

It is an amenable number.

90413844 is an abundant number, since it is smaller than the sum of its proper divisors (121722444).

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

90413844 is a wasteful number, since it uses less digits than its factorization.

90413844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41815 (or 41813 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 90413844 is about 9508.6194581548. The cubic root of 90413844 is about 448.8263143051.

The spelling of 90413844 in words is "ninety million, four hundred thirteen thousand, eight hundred forty-four".