99331400 has 48 divisors (see below), whose sum is σ = 263941440. Its totient is φ = 34056000.

The previous prime is 99331339. The next prime is 99331403. The reversal of 99331400 is 413399.

It is not an unprimeable number, because it can be changed into a prime (99331403) 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, 34076 + ... + 36875.

It is an arithmetic number, because the mean of its divisors is an integer number (5498780).

Almost surely, 2^99331400 is an apocalyptic number.

It is an amenable number.

99331400 is an abundant number, since it is smaller than the sum of its proper divisors (164610040).

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

99331400 is a wasteful number, since it uses less digits than its factorization.

99331400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70974 (or 70965 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 99331400 is about 9966.5139341698. The cubic root of 99331400 is about 463.1221138717.

Adding to 99331400 its reverse (413399), we get a palindrome (99744799).

The spelling of 99331400 in words is "ninety-nine million, three hundred thirty-one thousand, four hundred".