90075238 has 32 divisors (see below), whose sum is σ = 156608640. Its totient is φ = 38424960.

The previous prime is 90075229. The next prime is 90075259. The reversal of 90075238 is 83257009.

It is a super-2 number, since 2×90075238² = 16227097001513288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46281 + ... + 48187.

It is an arithmetic number, because the mean of its divisors is an integer number (4894020).

Almost surely, 2^90075238 is an apocalyptic number.

90075238 is a deficient number, since it is larger than the sum of its proper divisors (66533402).

90075238 is a wasteful number, since it uses less digits than its factorization.

90075238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 90075238 is about 9490.7975428833. The cubic root of 90075238 is about 448.2653183660.

The spelling of 90075238 in words is "ninety million, seventy-five thousand, two hundred thirty-eight".