1224889748 has 24 divisors (see below), whose sum is σ = 2284353792. Its totient is φ = 573350624.

The previous prime is 1224889741. The next prime is 1224889753. The reversal of 1224889748 is 8479884221.

It is a self number, because there is not a number n which added to its sum of digits gives 1224889748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224889741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137315 + ... + 145962.

It is an arithmetic number, because the mean of its divisors is an integer number (95181408).

Almost surely, 2^1224889748 is an apocalyptic number.

It is an amenable number.

1224889748 is a deficient number, since it is larger than the sum of its proper divisors (1059464044).

1224889748 is a wasteful number, since it uses less digits than its factorization.

1224889748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283351 (or 283349 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 53.

The square root of 1224889748 is about 34998.4249359882. The cubic root of 1224889748 is about 1069.9553793953.

The spelling of 1224889748 in words is "one billion, two hundred twenty-four million, eight hundred eighty-nine thousand, seven hundred forty-eight".