20223204400 has 60 divisors (see below), whose sum is σ = 55527148912. Its totient is φ = 6933669120.

The previous prime is 20223204389. The next prime is 20223204467. The reversal of 20223204400 is 440232202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3608487 + ... + 3614086.

Almost surely, 2^20223204400 is an apocalyptic number.

20223204400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20223204400 is an abundant number, since it is smaller than the sum of its proper divisors (35303944512).

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

20223204400 is a wasteful number, since it uses less digits than its factorization.

20223204400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7222598 (or 7222587 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 20223204400 its reverse (440232202), we get a palindrome (20663436602).

The spelling of 20223204400 in words is "twenty billion, two hundred twenty-three million, two hundred four thousand, four hundred".