99140880 has 40 divisors (see below), whose sum is σ = 307337472. Its totient is φ = 26437504.

The previous prime is 99140863. The next prime is 99140903. The reversal of 99140880 is 8804199.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206304 + ... + 206783.

Almost surely, 2^99140880 is an apocalyptic number.

It is an amenable number.

99140880 is an abundant number, since it is smaller than the sum of its proper divisors (208196592).

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

99140880 is a wasteful number, since it uses less digits than its factorization.

99140880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413103 (or 413097 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 99140880 is about 9956.9513406464. The cubic root of 99140880 is about 462.8258312696.

The spelling of 99140880 in words is "ninety-nine million, one hundred forty thousand, eight hundred eighty".