90415760 has 40 divisors (see below), whose sum is σ = 219360960. Its totient is φ = 34593152.

The previous prime is 90415757. The next prime is 90415777. The reversal of 90415760 is 6751409.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22730 + ... + 26409.

It is an arithmetic number, because the mean of its divisors is an integer number (5484024).

Almost surely, 2^90415760 is an apocalyptic number.

It is an amenable number.

90415760 is an abundant number, since it is smaller than the sum of its proper divisors (128945200).

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

90415760 is a wasteful number, since it uses less digits than its factorization.

90415760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49175 (or 49169 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 90415760 is about 9508.7202083141. The cubic root of 90415760 is about 448.8294847088.

The spelling of 90415760 in words is "ninety million, four hundred fifteen thousand, seven hundred sixty".