89632440 has 128 divisors (see below), whose sum is σ = 301320000. Its totient is φ = 23698944.

The previous prime is 89632429. The next prime is 89632441. The reversal of 89632440 is 4423698.

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 = 89632395 and 89632404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89632441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160642 + ... + 161198.

Almost surely, 2^89632440 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 89632440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150660000).

89632440 is an abundant number, since it is smaller than the sum of its proper divisors (211687560).

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

89632440 is a wasteful number, since it uses less digits than its factorization.

89632440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726 (or 716 counting only the distinct ones).

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

The square root of 89632440 is about 9467.4410481397. The cubic root of 89632440 is about 447.5295736934.

The spelling of 89632440 in words is "eighty-nine million, six hundred thirty-two thousand, four hundred forty".