99303400 has 72 divisors (see below), whose sum is σ = 268601670. Its totient is φ = 34043520.

The previous prime is 99303389. The next prime is 99303401. The reversal of 99303400 is 430399.

It can be written as a sum of positive squares in 3 ways, for example, as 86155524 + 13147876 = 9282^2 + 3626^2 .

It is a super-2 number, since 2×99303400² = 19722330503120000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (99303401) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4734 + ... + 14866.

Almost surely, 2^99303400 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 99303400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134300835).

99303400 is an abundant number, since it is smaller than the sum of its proper divisors (169298270).

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

99303400 is a wasteful number, since it uses less digits than its factorization.

99303400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10163 (or 10147 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 99303400 is about 9965.1091313643. The cubic root of 99303400 is about 463.0785941058.

Adding to 99303400 its reverse (430399), we get a palindrome (99733799).

The spelling of 99303400 in words is "ninety-nine million, three hundred three thousand, four hundred".