1224004032 has 84 divisors (see below), whose sum is σ = 3534223056. Its totient is φ = 404997120.

The previous prime is 1224004027. The next prime is 1224004057. The reversal of 1224004032 is 2304004221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1224003996 and 1224004014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71157 + ... + 86667.

It is an arithmetic number, because the mean of its divisors is an integer number (42074084).

Almost surely, 2^1224004032 is an apocalyptic number.

1224004032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1224004032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1767111528).

1224004032 is an abundant number, since it is smaller than the sum of its proper divisors (2310219024).

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

1224004032 is a wasteful number, since it uses less digits than its factorization.

1224004032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15666 (or 15653 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1224004032 is about 34985.7689925490. The cubic root of 1224004032 is about 1069.6974228150.

Adding to 1224004032 its reverse (2304004221), we get a palindrome (3528008253).

The spelling of 1224004032 in words is "one billion, two hundred twenty-four million, four thousand, thirty-two".