99258240 has 128 divisors (see below), whose sum is σ = 335106720. Its totient is φ = 24903680.

The previous prime is 99258239. The next prime is 99258251. The reversal of 99258240 is 4285299.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31120 + ... + 34160.

Almost surely, 2^99258240 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 99258240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167553360).

99258240 is an abundant number, since it is smaller than the sum of its proper divisors (235848480).

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

99258240 is a wasteful number, since it uses less digits than its factorization.

99258240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080 (or 3068 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 99258240 is about 9962.8429677477. The cubic root of 99258240 is about 463.0083856999.

The spelling of 99258240 in words is "ninety-nine million, two hundred fifty-eight thousand, two hundred forty".