224421136 has 20 divisors (see below), whose sum is σ = 437334732. Its totient is φ = 111560576.

The previous prime is 224421107. The next prime is 224421149. The reversal of 224421136 is 631124422.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 202891536 + 21529600 = 14244^2 + 4640^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 224421136.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37771 + ... + 43306.

Almost surely, 2^224421136 is an apocalyptic number.

It is an amenable number.

224421136 is a deficient number, since it is larger than the sum of its proper divisors (212913596).

224421136 is a wasteful number, since it uses less digits than its factorization.

224421136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81258 (or 81252 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 224421136 is about 14980.6921068421. The cubic root of 224421136 is about 607.6981563831.

Adding to 224421136 its reverse (631124422), we get a palindrome (855545558).

The spelling of 224421136 in words is "two hundred twenty-four million, four hundred twenty-one thousand, one hundred thirty-six".