99941280 has 96 divisors (see below), whose sum is σ = 320241600. Its totient is φ = 26191872.

The previous prime is 99941267. The next prime is 99941291. The reversal of 99941280 is 8214999.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26556 + ... + 30084.

It is an arithmetic number, because the mean of its divisors is an integer number (3335850).

Almost surely, 2^99941280 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 99941280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160120800).

99941280 is an abundant number, since it is smaller than the sum of its proper divisors (220300320).

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

99941280 is a wasteful number, since it uses less digits than its factorization.

99941280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606 (or 3598 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 99941280 is about 9997.0635688686. The cubic root of 99941280 is about 464.0680142074.

The spelling of 99941280 in words is "ninety-nine million, nine hundred forty-one thousand, two hundred eighty".