99545280 has 112 divisors (see below), whose sum is σ = 319613280. Its totient is φ = 26247168.

The previous prime is 99545273. The next prime is 99545287. The reversal of 99545280 is 8254599.

It is an interprime number because it is at equal distance from previous prime (99545273) and next prime (99545287).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99545287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92586 + ... + 93654.

It is an arithmetic number, because the mean of its divisors is an integer number (2853690).

Almost surely, 2^99545280 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 99545280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159806640).

99545280 is an abundant number, since it is smaller than the sum of its proper divisors (220068000).

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

99545280 is a wasteful number, since it uses less digits than its factorization.

99545280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186 (or 1176 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 99545280 is about 9977.2380947835. The cubic root of 99545280 is about 463.4542731870.

The spelling of 99545280 in words is "ninety-nine million, five hundred forty-five thousand, two hundred eighty".