99089280 has 96 divisors (see below), whose sum is σ = 342187560. Its totient is φ = 26422272.

The previous prime is 99089279. The next prime is 99089303. The reversal of 99089280 is 8298099.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2842 + ... + 14361.

Almost surely, 2^99089280 is an apocalyptic number.

99089280 is a gapful number since it is divisible by the number (90) 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 99089280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171093780).

99089280 is an abundant number, since it is smaller than the sum of its proper divisors (243098280).

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

99089280 is a wasteful number, since it uses less digits than its factorization.

99089280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17228 (or 17213 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 99089280 is about 9954.3598488301. The cubic root of 99089280 is about 462.7455214541.

The spelling of 99089280 in words is "ninety-nine million, eighty-nine thousand, two hundred eighty".