1244444407 has 2 divisors, whose sum is σ = 1244444408. Its totient is φ = 1244444406.

The previous prime is 1244444393. The next prime is 1244444413. The reversal of 1244444407 is 7044444421.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1244444407 is a prime.

It is a super-2 number, since 2×1244444407² = 3097283764227163298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1244444497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622222203 + 622222204.

It is an arithmetic number, because the mean of its divisors is an integer number (622222204).

Almost surely, 2^1244444407 is an apocalyptic number.

1244444407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244444407 is an equidigital number, since it uses as much as digits as its factorization.

1244444407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57344, while the sum is 34.

The square root of 1244444407 is about 35276.6836168028. The cubic root of 1244444407 is about 1075.6190865615.

Adding to 1244444407 its reverse (7044444421), we get a palindrome (8288888828).

The spelling of 1244444407 in words is "one billion, two hundred forty-four million, four hundred forty-four thousand, four hundred seven".