1344644225 has 12 divisors (see below), whose sum is σ = 1667903664. Its totient is φ = 1075363920.

The previous prime is 1344644201. The next prime is 1344644237. The reversal of 1344644225 is 5224464431.

It is not a de Polignac number, because 1344644225 - 2⁸ = 1344643969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91862 + ... + 105488.

It is an arithmetic number, because the mean of its divisors is an integer number (138991972).

Almost surely, 2^1344644225 is an apocalyptic number.

It is an amenable number.

1344644225 is a deficient number, since it is larger than the sum of its proper divisors (323259439).

1344644225 is a wasteful number, since it uses less digits than its factorization.

1344644225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17584 (or 17579 counting only the distinct ones).

The product of its digits is 92160, while the sum is 35.

The square root of 1344644225 is about 36669.3908457722. The cubic root of 1344644225 is about 1103.7459685702.

The spelling of 1344644225 in words is "one billion, three hundred forty-four million, six hundred forty-four thousand, two hundred twenty-five".