2243020400 has 30 divisors (see below), whose sum is σ = 5388857472. Its totient is φ = 897208000.

The previous prime is 2243020393. The next prime is 2243020459. The reversal of 2243020400 is 40203422.

It is a super-2 number, since 2×2243020400² = 10062281029632320000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2803376 + ... + 2804175.

Almost surely, 2^2243020400 is an apocalyptic number.

2243020400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2243020400 is an abundant number, since it is smaller than the sum of its proper divisors (3145837072).

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

2243020400 is a wasteful number, since it uses less digits than its factorization.

2243020400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5607569 (or 5607558 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 2243020400 is about 47360.5363145309. The cubic root of 2243020400 is about 1309.0143509404.

Adding to 2243020400 its reverse (40203422), we get a palindrome (2283223822).

The spelling of 2243020400 in words is "two billion, two hundred forty-three million, twenty thousand, four hundred".