224220400 has 30 divisors (see below), whose sum is σ = 538690472. Its totient is φ = 89688000.

The previous prime is 224220341. The next prime is 224220419. The reversal of 224220400 is 4022422.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 279876 + ... + 280675.

Almost surely, 2^224220400 is an apocalyptic number.

224220400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224220400 is an abundant number, since it is smaller than the sum of its proper divisors (314470072).

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

224220400 is a wasteful number, since it uses less digits than its factorization.

224220400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560569 (or 560558 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 224220400 is about 14973.9907840228. The cubic root of 224220400 is about 607.5169148592.

Adding to 224220400 its reverse (4022422), we get a palindrome (228242822).

The spelling of 224220400 in words is "two hundred twenty-four million, two hundred twenty thousand, four hundred".