90632844 has 30 divisors (see below), whose sum is σ = 236933004. Its totient is φ = 30210840.

The previous prime is 90632833. The next prime is 90632851. The reversal of 90632844 is 44823609.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 90632799 and 90632808.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 139542 + ... + 140189.

Almost surely, 2^90632844 is an apocalyptic number.

It is an amenable number.

90632844 is an abundant number, since it is smaller than the sum of its proper divisors (146300160).

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

90632844 is a wasteful number, since it uses less digits than its factorization.

90632844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279747 (or 279736 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 90632844 is about 9520.1283604792. The cubic root of 90632844 is about 449.1884037946.

The spelling of 90632844 in words is "ninety million, six hundred thirty-two thousand, eight hundred forty-four".