90238168 has 16 divisors (see below), whose sum is σ = 171099000. Its totient is φ = 44611776.

The previous prime is 90238151. The next prime is 90238217. The reversal of 90238168 is 86183209.

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 3 ways as a sum of consecutive naturals, for example, 62658 + ... + 64081.

Almost surely, 2^90238168 is an apocalyptic number.

It is an amenable number.

90238168 is a deficient number, since it is larger than the sum of its proper divisors (80860832).

90238168 is a wasteful number, since it uses less digits than its factorization.

90238168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126834 (or 126830 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 90238168 is about 9499.3772427460. The cubic root of 90238168 is about 448.5354328387.

The spelling of 90238168 in words is "ninety million, two hundred thirty-eight thousand, one hundred sixty-eight".