99442400 has 36 divisors (see below), whose sum is σ = 242765712. Its totient is φ = 39776640.

The previous prime is 99442381. The next prime is 99442417. The reversal of 99442400 is 424499.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61352 + ... + 62951.

It is an arithmetic number, because the mean of its divisors is an integer number (6743492).

Almost surely, 2^99442400 is an apocalyptic number.

It is an amenable number.

99442400 is an abundant number, since it is smaller than the sum of its proper divisors (143323312).

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

99442400 is a wasteful number, since it uses less digits than its factorization.

99442400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124323 (or 124310 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 99442400 is about 9972.0810265461. The cubic root of 99442400 is about 463.2945582282.

Adding to 99442400 its reverse (424499), we get a palindrome (99866899).

The spelling of 99442400 in words is "ninety-nine million, four hundred forty-two thousand, four hundred".