89111040 has 160 divisors (see below), whose sum is σ = 292856256. Its totient is φ = 23101440.

The previous prime is 89111021. The next prime is 89111051. The reversal of 89111040 is 4011198.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 89111040.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314739 + ... + 315021.

Almost surely, 2^89111040 is an apocalyptic number.

89111040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89111040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146428128).

89111040 is an abundant number, since it is smaller than the sum of its proper divisors (203745216).

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

89111040 is a wasteful number, since it uses less digits than its factorization.

89111040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 89111040 is about 9439.8644058058. The cubic root of 89111040 is about 446.6601122773.

The spelling of 89111040 in words is "eighty-nine million, one hundred eleven thousand, forty".