1224429 has 8 divisors (see below), whose sum is σ = 1655232. Its totient is φ = 804960.

The previous prime is 1224413. The next prime is 1224437. The reversal of 1224429 is 9244221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1224429 - 2⁴ = 1224413 is a prime.

1224429 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1224399 and 1224408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2577 + ... + 3014.

It is an arithmetic number, because the mean of its divisors is an integer number (206904).

2^1224429 is an apocalyptic number.

It is an amenable number.

1224429 is a deficient number, since it is larger than the sum of its proper divisors (430803).

1224429 is an equidigital number, since it uses as much as digits as its factorization.

1224429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5667.

The product of its digits is 1152, while the sum is 24.

The square root of 1224429 is about 1106.5391994864. The cubic root of 1224429 is about 106.9821206333.

It can be divided in two parts, 1224 and 429, that added together give a triangular number (1653 = T₅₇).

The spelling of 1224429 in words is "one million, two hundred twenty-four thousand, four hundred twenty-nine".