1224531352 has 64 divisors (see below), whose sum is σ = 2657953440. Its totient is φ = 522700800.

The previous prime is 1224531349. The next prime is 1224531353. The reversal of 1224531352 is 2531354221.

It is a self number, because there is not a number n which added to its sum of digits gives 1224531352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224531353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1227718 + ... + 1228714.

Almost surely, 2^1224531352 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 1224531352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1328976720).

1224531352 is an abundant number, since it is smaller than the sum of its proper divisors (1433422088).

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

1224531352 is a wasteful number, since it uses less digits than its factorization.

1224531352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852 (or 1848 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 1224531352 is about 34993.3043881255. The cubic root of 1224531352 is about 1069.8510148637.

Adding to 1224531352 its reverse (2531354221), we get a palindrome (3755885573).

The spelling of 1224531352 in words is "one billion, two hundred twenty-four million, five hundred thirty-one thousand, three hundred fifty-two".