90240210756 has 72 divisors (see below), whose sum is σ = 236629111264. Its totient is φ = 30070725120.

The previous prime is 90240210751. The next prime is 90240210773. The reversal of 90240210756 is 65701204209.

It is a super-3 number, since 3×90240210756³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 90240210756.

It is not an unprimeable number, because it can be changed into a prime (90240210751) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3575076 + ... + 3600228.

Almost surely, 2^90240210756 is an apocalyptic number.

It is an amenable number.

90240210756 is an abundant number, since it is smaller than the sum of its proper divisors (146388900508).

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

90240210756 is a wasteful number, since it uses less digits than its factorization.

90240210756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28863 (or 28849 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 90240210756 in words is "ninety billion, two hundred forty million, two hundred ten thousand, seven hundred fifty-six".