99248640 has 80 divisors (see below), whose sum is σ = 317310048. Its totient is φ = 26464256.

The previous prime is 99248629. The next prime is 99248671. The reversal of 99248640 is 4684299.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 99248592 and 99248601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1219 + ... + 14141.

Almost surely, 2^99248640 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 99248640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158655024).

99248640 is an abundant number, since it is smaller than the sum of its proper divisors (218061408).

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

99248640 is a wasteful number, since it uses less digits than its factorization.

99248640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12949 (or 12933 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 99248640 is about 9962.3611659084. The cubic root of 99248640 is about 462.9934582279.

The spelling of 99248640 in words is "ninety-nine million, two hundred forty-eight thousand, six hundred forty".