2223445400 has 96 divisors (see below), whose sum is σ = 5746172400. Its totient is φ = 793228800.

The previous prime is 2223445387. The next prime is 2223445421. The reversal of 2223445400 is 45443222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2223445400.

It is a congruent number.

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, 107066 + ... + 126134.

Almost surely, 2^2223445400 is an apocalyptic number.

2223445400 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 2223445400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2873086200).

2223445400 is an abundant number, since it is smaller than the sum of its proper divisors (3522727000).

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

2223445400 is a wasteful number, since it uses less digits than its factorization.

2223445400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19149 (or 19140 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 2223445400 is about 47153.4240538267. The cubic root of 2223445400 is about 1305.1952654285.

Adding to 2223445400 its reverse (45443222), we get a palindrome (2268888622).

The spelling of 2223445400 in words is "two billion, two hundred twenty-three million, four hundred forty-five thousand, four hundred".