99233280 has 240 divisors, whose sum is σ = 354285360. Its totient is φ = 25657344.

The previous prime is 99233279. The next prime is 99233327. The reversal of 99233280 is 8233299.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1359324 + ... + 1359396.

It is an arithmetic number, because the mean of its divisors is an integer number (1476189).

Almost surely, 2^99233280 is an apocalyptic number.

99233280 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99233280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177142680).

99233280 is an abundant number, since it is smaller than the sum of its proper divisors (255052080).

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

99233280 is a wasteful number, since it uses less digits than its factorization.

99233280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 99233280 is about 9961.5902344957. The cubic root of 99233280 is about 462.9695722703.

It can be divided in two parts, 9923 and 3280, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 99233280 in words is "ninety-nine million, two hundred thirty-three thousand, two hundred eighty".