1224564372 has 48 divisors (see below), whose sum is σ = 3182491200. Its totient is φ = 407198880.

The previous prime is 1224564359. The next prime is 1224564373. The reversal of 1224564372 is 2734654221.

1224564372 is a `hidden beast` number, since 1 + 2 + 2 + 4 + 5 + 643 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224564373) 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, 31722 + ... + 58782.

It is an arithmetic number, because the mean of its divisors is an integer number (66301900).

Almost surely, 2^1224564372 is an apocalyptic number.

1224564372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1224564372 is an abundant number, since it is smaller than the sum of its proper divisors (1957926828).

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

1224564372 is a wasteful number, since it uses less digits than its factorization.

1224564372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27493 (or 27485 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 1224564372 is about 34993.7761894883. The cubic root of 1224564372 is about 1069.8606311039.

The spelling of 1224564372 in words is "one billion, two hundred twenty-four million, five hundred sixty-four thousand, three hundred seventy-two".