99240408 has 24 divisors (see below), whose sum is σ = 268776300. Its totient is φ = 33080112.

The previous prime is 99240347. The next prime is 99240413. The reversal of 99240408 is 80404299.

It is a happy number.

99240408 is a `hidden beast` number, since 9 + 9 + 240 + 408 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 689098 + ... + 689241.

Almost surely, 2^99240408 is an apocalyptic number.

It is an amenable number.

99240408 is an abundant number, since it is smaller than the sum of its proper divisors (169535892).

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

99240408 is a wasteful number, since it uses less digits than its factorization.

99240408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378351 (or 1378344 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 99240408 is about 9961.9480022735. The cubic root of 99240408 is about 462.9806571540.

The spelling of 99240408 in words is "ninety-nine million, two hundred forty thousand, four hundred eight".