99329580 has 144 divisors (see below), whose sum is σ = 355590144. Its totient is φ = 21962880.

The previous prime is 99329569. The next prime is 99329641. The reversal of 99329580 is 8592399.

99329580 = 1775² + 1776² + ... + 1805².

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37789 + ... + 40331.

It is an arithmetic number, because the mean of its divisors is an integer number (2469376).

Almost surely, 2^99329580 is an apocalyptic number.

99329580 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 99329580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177795072).

99329580 is an abundant number, since it is smaller than the sum of its proper divisors (256260564).

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

99329580 is a wasteful number, since it uses less digits than its factorization.

99329580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2596 (or 2591 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 99329580 is about 9966.4226280045. The cubic root of 99329580 is about 463.1192853355.

The spelling of 99329580 in words is "ninety-nine million, three hundred twenty-nine thousand, five hundred eighty".