2123244400 has 30 divisors (see below), whose sum is σ = 5101095632. Its totient is φ = 849297600.

The previous prime is 2123244373. The next prime is 2123244401. The reversal of 2123244400 is 44423212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123244401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2653656 + ... + 2654455.

Almost surely, 2^2123244400 is an apocalyptic number.

2123244400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123244400 is an abundant number, since it is smaller than the sum of its proper divisors (2977851232).

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

2123244400 is a wasteful number, since it uses less digits than its factorization.

2123244400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5308129 (or 5308118 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2123244400 is about 46078.6761962624. The cubic root of 2123244400 is about 1285.2866474332.

Adding to 2123244400 its reverse (44423212), we get a palindrome (2167667612).

The spelling of 2123244400 in words is "two billion, one hundred twenty-three million, two hundred forty-four thousand, four hundred".