1224442432 has 56 divisors (see below), whose sum is σ = 2482312536. Its totient is φ = 599113728.

The previous prime is 1224442397. The next prime is 1224442469. The reversal of 1224442432 is 2342444221.

It can be written as a sum of positive squares in 4 ways, for example, as 483296256 + 741146176 = 21984^2 + 27224^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1224442432.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639108 + ... + 641020.

Almost surely, 2^1224442432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1224442432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1241156268).

1224442432 is an abundant number, since it is smaller than the sum of its proper divisors (1257870104).

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

1224442432 is a wasteful number, since it uses less digits than its factorization.

1224442432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135 (or 2125 counting only the distinct ones).

The product of its digits is 12288, while the sum is 28.

The square root of 1224442432 is about 34992.0338362891. The cubic root of 1224442432 is about 1069.8251183020.

Adding to 1224442432 its reverse (2342444221), we get a palindrome (3566886653).

The spelling of 1224442432 in words is "one billion, two hundred twenty-four million, four hundred forty-two thousand, four hundred thirty-two".