90118768 has 20 divisors (see below), whose sum is σ = 184876560. Its totient is φ = 42408704.

The previous prime is 90118759. The next prime is 90118771. The reversal of 90118768 is 86781109.

It is a self number, because there is not a number n which added to its sum of digits gives 90118768.

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, 165388 + ... + 165931.

It is an arithmetic number, because the mean of its divisors is an integer number (9243828).

Almost surely, 2^90118768 is an apocalyptic number.

It is an amenable number.

90118768 is an abundant number, since it is smaller than the sum of its proper divisors (94757792).

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

90118768 is a wasteful number, since it uses less digits than its factorization.

90118768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331344 (or 331338 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 90118768 is about 9493.0905399664. The cubic root of 90118768 is about 448.3375167019.

The spelling of 90118768 in words is "ninety million, one hundred eighteen thousand, seven hundred sixty-eight".