1224431232 has 64 divisors (see below), whose sum is σ = 3340336800. Its totient is φ = 397108224.

The previous prime is 1224431207. The next prime is 1224431233. The reversal of 1224431232 is 2321344221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is not an unprimeable number, because it can be changed into a prime (1224431233) 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, 28882 + ... + 57297.

Almost surely, 2^1224431232 is an apocalyptic number.

1224431232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1224431232 is an abundant number, since it is smaller than the sum of its proper divisors (2115905568).

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

1224431232 is an equidigital number, since it uses as much as digits as its factorization.

1224431232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86233 (or 86221 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 1224431232 is about 34991.8737994981. The cubic root of 1224431232 is about 1069.8218563880.

Adding to 1224431232 its reverse (2321344221), we get a palindrome (3545775453).

The spelling of 1224431232 in words is "one billion, two hundred twenty-four million, four hundred thirty-one thousand, two hundred thirty-two".