99941520 has 320 divisors, whose sum is σ = 388546560. Its totient is φ = 20736000.

The previous prime is 99941483. The next prime is 99941533. The reversal of 99941520 is 2514999.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 989470 + ... + 989570.

It is an arithmetic number, because the mean of its divisors is an integer number (1214208).

Almost surely, 2^99941520 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 99941520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194273280).

99941520 is an abundant number, since it is smaller than the sum of its proper divisors (288605040).

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

99941520 is a wasteful number, since it uses less digits than its factorization.

99941520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 99941520 is about 9997.0755723862. The cubic root of 99941520 is about 464.0683856796.

The spelling of 99941520 in words is "ninety-nine million, nine hundred forty-one thousand, five hundred twenty".