99386280 has 96 divisors (see below), whose sum is σ = 369158400. Its totient is φ = 22716288.

The previous prime is 99386257. The next prime is 99386281. The reversal of 99386280 is 8268399.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (99386281) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 17200 + ... + 22239.

It is an arithmetic number, because the mean of its divisors is an integer number (3845400).

Almost surely, 2^99386280 is an apocalyptic number.

99386280 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

99386280 is an abundant number, since it is smaller than the sum of its proper divisors (269772120).

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

99386280 is a wasteful number, since it uses less digits than its factorization.

99386280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39463 (or 39456 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 99386280 is about 9969.2667734393. The cubic root of 99386280 is about 463.2073888948.

The spelling of 99386280 in words is "ninety-nine million, three hundred eighty-six thousand, two hundred eighty".