99995280 has 240 divisors, whose sum is σ = 393885504. Its totient is φ = 20751360.

The previous prime is 99995279. The next prime is 99995281. The reversal of 99995280 is 8259999.

It is an interprime number because it is at equal distance from previous prime (99995279) and next prime (99995281).

It is a tau number, because it is divible by the number of its divisors (240).

It is not an unprimeable number, because it can be changed into a prime (99995281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 128974 + ... + 129746.

Almost surely, 2^99995280 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 99995280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196942752).

99995280 is an abundant number, since it is smaller than the sum of its proper divisors (293890224).

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

99995280 is a wasteful number, since it uses less digits than its factorization.

99995280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814 (or 801 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 51.

The square root of 99995280 is about 9999.7639972151. The cubic root of 99995280 is about 464.1515804799.

The spelling of 99995280 in words is "ninety-nine million, nine hundred ninety-five thousand, two hundred eighty".