1223344429 has 16 divisors (see below), whose sum is σ = 1334367216. Its totient is φ = 1116979200.

The previous prime is 1223344399. The next prime is 1223344433. The reversal of 1223344429 is 9244433221.

It can be written as a sum of positive squares in 8 ways, for example, as 491641929 + 731702500 = 22173^2 + 27050^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223344429 - 2¹¹ = 1223342381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223344394 and 1223344403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223344489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121309 + ... + 131005.

It is an arithmetic number, because the mean of its divisors is an integer number (83397951).

Almost surely, 2^1223344429 is an apocalyptic number.

It is an amenable number.

1223344429 is a deficient number, since it is larger than the sum of its proper divisors (111022787).

1223344429 is a wasteful number, since it uses less digits than its factorization.

1223344429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9936.

The product of its digits is 41472, while the sum is 34.

The square root of 1223344429 is about 34976.3409893030. The cubic root of 1223344429 is about 1069.5052386960.

The spelling of 1223344429 in words is "one billion, two hundred twenty-three million, three hundred forty-four thousand, four hundred twenty-nine".