99715240 has 32 divisors (see below), whose sum is σ = 227525760. Its totient is φ = 39323200.

The previous prime is 99715201. The next prime is 99715283. The reversal of 99715240 is 4251799.

It is a self number, because there is not a number n which added to its sum of digits gives 99715240.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14716 + ... + 20395.

It is an arithmetic number, because the mean of its divisors is an integer number (7110180).

Almost surely, 2^99715240 is an apocalyptic number.

It is an amenable number.

99715240 is an abundant number, since it is smaller than the sum of its proper divisors (127810520).

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

99715240 is a wasteful number, since it uses less digits than its factorization.

99715240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35193 (or 35189 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 99715240 is about 9985.7518495104. The cubic root of 99715240 is about 463.7178848882.

The spelling of 99715240 in words is "ninety-nine million, seven hundred fifteen thousand, two hundred forty".