1224421432 has 32 divisors (see below), whose sum is σ = 2474776080. Its totient is φ = 564572160.

The previous prime is 1224421421. The next prime is 1224421439. The reversal of 1224421432 is 2341244221.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1224421397 and 1224421406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224421439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114807 + ... + 125017.

Almost surely, 2^1224421432 is an apocalyptic number.

It is an amenable number.

1224421432 is an abundant number, since it is smaller than the sum of its proper divisors (1250354648).

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

1224421432 is a wasteful number, since it uses less digits than its factorization.

1224421432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11383 (or 11379 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 1224421432 is about 34991.7337667055. The cubic root of 1224421432 is about 1069.8190021969.

Adding to 1224421432 its reverse (2341244221), we get a palindrome (3565665653).

The spelling of 1224421432 in words is "one billion, two hundred twenty-four million, four hundred twenty-one thousand, four hundred thirty-two".