1224340852 has 72 divisors (see below), whose sum is σ = 2567593728. Its totient is φ = 509040000.

The previous prime is 1224340837. The next prime is 1224340913. The reversal of 1224340852 is 2580434221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2016733 + ... + 2017339.

It is an arithmetic number, because the mean of its divisors is an integer number (35661024).

Almost surely, 2^1224340852 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 1224340852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1283796864).

1224340852 is an abundant number, since it is smaller than the sum of its proper divisors (1343252876).

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

1224340852 is a wasteful number, since it uses less digits than its factorization.

1224340852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917 (or 908 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 1224340852 is about 34990.5823329650. The cubic root of 1224340852 is about 1069.7955331788.

The spelling of 1224340852 in words is "one billion, two hundred twenty-four million, three hundred forty thousand, eight hundred fifty-two".