99120528 has 90 divisors (see below), whose sum is σ = 300453426. Its totient is φ = 30491136.

The previous prime is 99120479. The next prime is 99120551. The reversal of 99120528 is 82502199.

99120528 is a `hidden beast` number, since 9 + 9 + 120 + 528 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 4875264 + 94245264 = 2208^2 + 9708^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 99120492 and 99120501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 22300 + ... + 26372.

Almost surely, 2^99120528 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 99120528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150226713).

99120528 is an abundant number, since it is smaller than the sum of its proper divisors (201332898).

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

99120528 is a wasteful number, since it uses less digits than its factorization.

99120528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4113 (or 4091 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 99120528 is about 9955.9292886199. The cubic root of 99120528 is about 462.7941589129.

The spelling of 99120528 in words is "ninety-nine million, one hundred twenty thousand, five hundred twenty-eight".