99232240 has 40 divisors (see below), whose sum is σ = 238163328. Its totient is φ = 38411520.

The previous prime is 99232223. The next prime is 99232279. The reversal of 99232240 is 4223299.

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

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

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, 17527 + ... + 22486.

Almost surely, 2^99232240 is an apocalyptic number.

It is an amenable number.

99232240 is an abundant number, since it is smaller than the sum of its proper divisors (138931088).

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

99232240 is a wasteful number, since it uses less digits than its factorization.

99232240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40057 (or 40051 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 99232240 is about 9961.5380338580. The cubic root of 99232240 is about 462.9679549028.

The spelling of 99232240 in words is "ninety-nine million, two hundred thirty-two thousand, two hundred forty".