90115264 has 56 divisors (see below), whose sum is σ = 188293248. Its totient is φ = 42731520.

The previous prime is 90115261. The next prime is 90115273. The reversal of 90115264 is 46251109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90115261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104724 + ... + 105580.

Almost surely, 2^90115264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90115264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94146624).

90115264 is an abundant number, since it is smaller than the sum of its proper divisors (98177984).

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

90115264 is a wasteful number, since it uses less digits than its factorization.

90115264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953 (or 943 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 90115264 is about 9492.9059828906. The cubic root of 90115264 is about 448.3317058700.

The spelling of 90115264 in words is "ninety million, one hundred fifteen thousand, two hundred sixty-four".