1224738829 has 4 divisors (see below), whose sum is σ = 1226650140. Its totient is φ = 1222827520.

The previous prime is 1224738811. The next prime is 1224738859. The reversal of 1224738829 is 9288374221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1099254025 + 125484804 = 33155^2 + 11202^2 .

It is a cyclic number.

It is not a de Polignac number, because 1224738829 - 2⁵ = 1224738797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224738859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 954694 + ... + 955975.

It is an arithmetic number, because the mean of its divisors is an integer number (306662535).

Almost surely, 2^1224738829 is an apocalyptic number.

It is an amenable number.

1224738829 is a deficient number, since it is larger than the sum of its proper divisors (1911311).

1224738829 is an equidigital number, since it uses as much as digits as its factorization.

1224738829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911310.

The product of its digits is 387072, while the sum is 46.

The square root of 1224738829 is about 34996.2687868293. The cubic root of 1224738829 is about 1069.9114344257.

It can be divided in two parts, 12247 and 38829, that added together give a square (51076 = 226²).

The spelling of 1224738829 in words is "one billion, two hundred twenty-four million, seven hundred thirty-eight thousand, eight hundred twenty-nine".