2223044400 has 120 divisors (see below), whose sum is σ = 7132003840. Its totient is φ = 591909120.

The previous prime is 2223044393. The next prime is 2223044413. The reversal of 2223044400 is 44403222.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1245909 + ... + 1247691.

Almost surely, 2^2223044400 is an apocalyptic number.

2223044400 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 2223044400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3566001920).

2223044400 is an abundant number, since it is smaller than the sum of its proper divisors (4908959440).

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

2223044400 is a wasteful number, since it uses less digits than its factorization.

2223044400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2843 (or 2832 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 2223044400 is about 47149.1717848787. The cubic root of 2223044400 is about 1305.1167964049.

Adding to 2223044400 its reverse (44403222), we get a palindrome (2267447622).

The spelling of 2223044400 in words is "two billion, two hundred twenty-three million, forty-four thousand, four hundred".