2231304400 has 240 divisors, whose sum is σ = 6265473984. Its totient is φ = 756080640.

The previous prime is 2231304377. The next prime is 2231304407. The reversal of 2231304400 is 44031322.

It is a super-3 number, since 3×2231304400³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231304407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3800907 + ... + 3801493.

Almost surely, 2^2231304400 is an apocalyptic number.

2231304400 is a gapful number since it is divisible by the number (20) 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 2231304400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3132736992).

2231304400 is an abundant number, since it is smaller than the sum of its proper divisors (4034169584).

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

2231304400 is a wasteful number, since it uses less digits than its factorization.

2231304400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2231304400 is about 47236.6848963811. The cubic root of 2231304400 is about 1306.7312401565.

Adding to 2231304400 its reverse (44031322), we get a palindrome (2275335722).

The spelling of 2231304400 in words is "two billion, two hundred thirty-one million, three hundred four thousand, four hundred".