1224442444 has 18 divisors (see below), whose sum is σ = 2239992860. Its totient is φ = 585601896.

The previous prime is 1224442397. The next prime is 1224442469. The reversal of 1224442444 is 4442444221.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

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, 287214 + ... + 291445.

Almost surely, 2^1224442444 is an apocalyptic number.

It is an amenable number.

1224442444 is a deficient number, since it is larger than the sum of its proper divisors (1015550416).

1224442444 is a wasteful number, since it uses less digits than its factorization.

1224442444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578709 (or 578684 counting only the distinct ones).

The product of its digits is 32768, while the sum is 31.

The square root of 1224442444 is about 34992.0340077567. The cubic root of 1224442444 is about 1069.8251217969.

Adding to 1224442444 its reverse (4442444221), we get a palindrome (5666886665).

The spelling of 1224442444 in words is "one billion, two hundred twenty-four million, four hundred forty-two thousand, four hundred forty-four".