90242588 has 12 divisors (see below), whose sum is σ = 158488512. Its totient is φ = 44960160.

The previous prime is 90242567. The next prime is 90242611. The reversal of 90242588 is 88524209.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 39020 + ... + 41267.

It is an arithmetic number, because the mean of its divisors is an integer number (13207376).

Almost surely, 2^90242588 is an apocalyptic number.

It is an amenable number.

90242588 is a deficient number, since it is larger than the sum of its proper divisors (68245924).

90242588 is a wasteful number, since it uses less digits than its factorization.

90242588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80572 (or 80570 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 90242588 is about 9499.6098867269. The cubic root of 90242588 is about 448.5427560306.

The spelling of 90242588 in words is "ninety million, two hundred forty-two thousand, five hundred eighty-eight".