90415288 has 16 divisors (see below), whose sum is σ = 169641360. Its totient is φ = 45177600.

The previous prime is 90415279. The next prime is 90415343. The reversal of 90415288 is 88251409.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13933 + ... + 19363.

It is an arithmetic number, because the mean of its divisors is an integer number (10602585).

Almost surely, 2^90415288 is an apocalyptic number.

It is an amenable number.

90415288 is a deficient number, since it is larger than the sum of its proper divisors (79226072).

90415288 is a wasteful number, since it uses less digits than its factorization.

90415288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7518 (or 7514 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 90415288 is about 9508.6953889585. The cubic root of 90415288 is about 448.8287036949.

The spelling of 90415288 in words is "ninety million, four hundred fifteen thousand, two hundred eighty-eight".