99228744 has 48 divisors (see below), whose sum is σ = 270553920. Its totient is φ = 32853600.

The previous prime is 99228743. The next prime is 99228751. The reversal of 99228744 is 44782299.

It is a self number, because there is not a number n which added to its sum of digits gives 99228744.

It is not an unprimeable number, because it can be changed into a prime (99228743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6309 + ... + 15435.

It is an arithmetic number, because the mean of its divisors is an integer number (5636540).

Almost surely, 2^99228744 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 99228744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135276960).

99228744 is an abundant number, since it is smaller than the sum of its proper divisors (171325176).

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

99228744 is a wasteful number, since it uses less digits than its factorization.

99228744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9290 (or 9283 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 99228744 is about 9961.3625574015. The cubic root of 99228744 is about 462.9625179770.

The spelling of 99228744 in words is "ninety-nine million, two hundred twenty-eight thousand, seven hundred forty-four".