90432216 has 48 divisors (see below), whose sum is σ = 279910800. Its totient is φ = 25837632.

The previous prime is 90432211. The next prime is 90432247. The reversal of 90432216 is 61223409.

It is a self number, because there is not a number n which added to its sum of digits gives 90432216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90432211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89211 + ... + 90218.

It is an arithmetic number, because the mean of its divisors is an integer number (5831475).

Almost surely, 2^90432216 is an apocalyptic number.

It is an amenable number.

90432216 is an abundant number, since it is smaller than the sum of its proper divisors (189478584).

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

90432216 is a wasteful number, since it uses less digits than its factorization.

90432216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179448 (or 179441 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 90432216 is about 9509.5854799250. The cubic root of 90432216 is about 448.8567125945.

The spelling of 90432216 in words is "ninety million, four hundred thirty-two thousand, two hundred sixteen".