89109240 has 288 divisors, whose sum is σ = 328361040. Its totient is φ = 19261440.

The previous prime is 89109233. The next prime is 89109311. The reversal of 89109240 is 4290198.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4689951 + ... + 4689969.

Almost surely, 2^89109240 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 89109240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164180520).

89109240 is an abundant number, since it is smaller than the sum of its proper divisors (239251800).

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

89109240 is a wasteful number, since it uses less digits than its factorization.

89109240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 89109240 is about 9439.7690649719. The cubic root of 89109240 is about 446.6571048175.

The spelling of 89109240 in words is "eighty-nine million, one hundred nine thousand, two hundred forty".