99540920 has 32 divisors (see below), whose sum is σ = 224305200. Its totient is φ = 39756288.

The previous prime is 99540911. The next prime is 99540937. The reversal of 99540920 is 2904599.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32912 + ... + 35808.

Almost surely, 2^99540920 is an apocalyptic number.

It is an amenable number.

99540920 is an abundant number, since it is smaller than the sum of its proper divisors (124764280).

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

99540920 is a wasteful number, since it uses less digits than its factorization.

99540920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3767 (or 3763 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 99540920 is about 9977.0195950494. The cubic root of 99540920 is about 463.4475067851.

The spelling of 99540920 in words is "ninety-nine million, five hundred forty thousand, nine hundred twenty".