99975040 has 96 divisors (see below), whose sum is σ = 262909080. Its totient is φ = 36326400.

The previous prime is 99975019. The next prime is 99975041. The reversal of 99975040 is 4057999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99975041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76795 + ... + 78085.

Almost surely, 2^99975040 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 99975040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131454540).

99975040 is an abundant number, since it is smaller than the sum of its proper divisors (162934040).

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

99975040 is a wasteful number, since it uses less digits than its factorization.

99975040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332 (or 1309 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 99975040 is about 9998.7519221151. The cubic root of 99975040 is about 464.1202621287.

The spelling of 99975040 in words is "ninety-nine million, nine hundred seventy-five thousand, forty".