90602520 has 128 divisors (see below), whose sum is σ = 300464640. Its totient is φ = 21739520.

The previous prime is 90602513. The next prime is 90602527. The reversal of 90602520 is 2520609.

It is an interprime number because it is at equal distance from previous prime (90602513) and next prime (90602527).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90602527) 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 31 ways as a sum of consecutive naturals, for example, 45955 + ... + 47885.

It is an arithmetic number, because the mean of its divisors is an integer number (2347380).

Almost surely, 2^90602520 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 90602520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150232320).

90602520 is an abundant number, since it is smaller than the sum of its proper divisors (209862120).

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

90602520 is a wasteful number, since it uses less digits than its factorization.

90602520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985 (or 1981 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 90602520 is about 9518.5356016564. The cubic root of 90602520 is about 449.1383016169.

The spelling of 90602520 in words is "ninety million, six hundred two thousand, five hundred twenty".