90196520 has 32 divisors (see below), whose sum is σ = 203212800. Its totient is φ = 36030528.

The previous prime is 90196511. The next prime is 90196523. The reversal of 90196520 is 2569109.

It is a super-2 number, since 2×90196520² = 16270824440220800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90196523) 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, 56777 + ... + 58343.

It is an arithmetic number, because the mean of its divisors is an integer number (6350400).

Almost surely, 2^90196520 is an apocalyptic number.

It is an amenable number.

90196520 is an abundant number, since it is smaller than the sum of its proper divisors (113016280).

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

90196520 is a wasteful number, since it uses less digits than its factorization.

90196520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017 (or 3013 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 90196520 is about 9497.1848460478. The cubic root of 90196520 is about 448.4664174070.

The spelling of 90196520 in words is "ninety million, one hundred ninety-six thousand, five hundred twenty".