90490032 has 60 divisors (see below), whose sum is σ = 255747024. Its totient is φ = 29865600.

The previous prime is 90490019. The next prime is 90490051. The reversal of 90490032 is 23009409.

It is a super-2 number, since 2×90490032² = 16376891782722048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90489978 and 90490005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11782 + ... + 17882.

Almost surely, 2^90490032 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 90490032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127873512).

90490032 is an abundant number, since it is smaller than the sum of its proper divisors (165256992).

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

90490032 is a wasteful number, since it uses less digits than its factorization.

90490032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6218 (or 6209 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 90490032 is about 9512.6248743446. The cubic root of 90490032 is about 448.9523480232.

The spelling of 90490032 in words is "ninety million, four hundred ninety thousand, thirty-two".