1344392636 has 12 divisors (see below), whose sum is σ = 2355800328. Its totient is φ = 671306832.

The previous prime is 1344392563. The next prime is 1344392641. The reversal of 1344392636 is 6362934431.

It is a junction number, because it is equal to n+sod(n) for n = 1344392593 and 1344392602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218966 + ... + 225021.

It is an arithmetic number, because the mean of its divisors is an integer number (196316694).

Almost surely, 2^1344392636 is an apocalyptic number.

It is an amenable number.

1344392636 is a deficient number, since it is larger than the sum of its proper divisors (1011407692).

1344392636 is a wasteful number, since it uses less digits than its factorization.

1344392636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444748 (or 444746 counting only the distinct ones).

The product of its digits is 279936, while the sum is 41.

The square root of 1344392636 is about 36665.9601810726. The cubic root of 1344392636 is about 1103.6771256599.

The spelling of 1344392636 in words is "one billion, three hundred forty-four million, three hundred ninety-two thousand, six hundred thirty-six".