89907240 has 128 divisors (see below), whose sum is σ = 290304000. Its totient is φ = 22203648.

The previous prime is 89907227. The next prime is 89907241. The reversal of 89907240 is 4270998.

It is not an unprimeable number, because it can be changed into a prime (89907241) 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, 106741 + ... + 107579.

It is an arithmetic number, because the mean of its divisors is an integer number (2268000).

Almost surely, 2^89907240 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 89907240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145152000).

89907240 is an abundant number, since it is smaller than the sum of its proper divisors (200396760).

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

89907240 is a wasteful number, since it uses less digits than its factorization.

89907240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919 (or 915 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 89907240 is about 9481.9428388912. The cubic root of 89907240 is about 447.9864605815.

The spelling of 89907240 in words is "eighty-nine million, nine hundred seven thousand, two hundred forty".