90108256 has 36 divisors (see below), whose sum is σ = 206367588. Its totient is φ = 38617152.

The previous prime is 90108251. The next prime is 90108287. The reversal of 90108256 is 65280109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90108251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27166 + ... + 30301.

It is an arithmetic number, because the mean of its divisors is an integer number (5732433).

Almost surely, 2^90108256 is an apocalyptic number.

It is an amenable number.

90108256 is an abundant number, since it is smaller than the sum of its proper divisors (116259332).

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

90108256 is a wasteful number, since it uses less digits than its factorization.

90108256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57491 (or 57476 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 90108256 is about 9492.5368579743. The cubic root of 90108256 is about 448.3200837544.

The spelling of 90108256 in words is "ninety million, one hundred eight thousand, two hundred fifty-six".