1224442469 has 2 divisors, whose sum is σ = 1224442470. Its totient is φ = 1224442468.

The previous prime is 1224442397. The next prime is 1224442481. The reversal of 1224442469 is 9642444221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1182672100 + 41770369 = 34390^2 + 6463^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1224442469 is a prime.

It is a super-2 number, since 2×1224442469² = 2998518719781631922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1224442489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612221234 + 612221235.

It is an arithmetic number, because the mean of its divisors is an integer number (612221235).

Almost surely, 2^1224442469 is an apocalyptic number.

It is an amenable number.

1224442469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224442469 is an equidigital number, since it uses as much as digits as its factorization.

1224442469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 38.

The square root of 1224442469 is about 34992.0343649808. The cubic root of 1224442469 is about 1069.8251290780.

The spelling of 1224442469 in words is "one billion, two hundred twenty-four million, four hundred forty-two thousand, four hundred sixty-nine".