90472432 has 20 divisors (see below), whose sum is σ = 182912400. Its totient is φ = 43269248.

The previous prime is 90472427. The next prime is 90472441. The reversal of 90472432 is 23427409.

It is a junction number, because it is equal to n+sod(n) for n = 90472394 and 90472403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122557 + ... + 123292.

It is an arithmetic number, because the mean of its divisors is an integer number (9145620).

Almost surely, 2^90472432 is an apocalyptic number.

90472432 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

90472432 is an abundant number, since it is smaller than the sum of its proper divisors (92439968).

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

90472432 is a wasteful number, since it uses less digits than its factorization.

90472432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245880 (or 245874 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 90472432 is about 9511.6997429482. The cubic root of 90472432 is about 448.9232395734.

The spelling of 90472432 in words is "ninety million, four hundred seventy-two thousand, four hundred thirty-two".