90502080 has 56 divisors (see below), whose sum is σ = 287347152. Its totient is φ = 24133632.

The previous prime is 90502031. The next prime is 90502081. The reversal of 90502080 is 8020509.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 90502080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90502081) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 46177 + ... + 48096.

Almost surely, 2^90502080 is an apocalyptic number.

It is an amenable number.

90502080 is an abundant number, since it is smaller than the sum of its proper divisors (196845072).

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

90502080 is a wasteful number, since it uses less digits than its factorization.

90502080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94293 (or 94283 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 90502080 is about 9513.2581169650. The cubic root of 90502080 is about 448.9722719040.

Adding to 90502080 its reverse (8020509), we get a palindrome (98522589).

The spelling of 90502080 in words is "ninety million, five hundred two thousand, eighty".