99100640 has 48 divisors (see below), whose sum is σ = 236017152. Its totient is φ = 39320064.

The previous prime is 99100601. The next prime is 99100679. The reversal of 99100640 is 4600199.

It is an interprime number because it is at equal distance from previous prime (99100601) and next prime (99100679).

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 7 ways as a sum of consecutive naturals, for example, 17882 + ... + 22758.

It is an arithmetic number, because the mean of its divisors is an integer number (4917024).

Almost surely, 2^99100640 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 99100640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118008576).

99100640 is an abundant number, since it is smaller than the sum of its proper divisors (136916512).

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

99100640 is a wasteful number, since it uses less digits than its factorization.

99100640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5019 (or 5011 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 99100640 is about 9954.9304367233. The cubic root of 99100640 is about 462.7632044576.

The spelling of 99100640 in words is "ninety-nine million, one hundred thousand, six hundred forty".