1344661894 has 16 divisors (see below), whose sum is σ = 2029626720. Its totient is φ = 668131200.

The previous prime is 1344661891. The next prime is 1344661897. The reversal of 1344661894 is 4981664431.

It is an interprime number because it is at equal distance from previous prime (1344661891) and next prime (1344661897).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344661891) 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, 269119 + ... + 274069.

It is an arithmetic number, because the mean of its divisors is an integer number (126851670).

Almost surely, 2^1344661894 is an apocalyptic number.

1344661894 is a deficient number, since it is larger than the sum of its proper divisors (684964826).

1344661894 is a wasteful number, since it uses less digits than its factorization.

1344661894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5775.

The product of its digits is 497664, while the sum is 46.

The square root of 1344661894 is about 36669.6317679903. The cubic root of 1344661894 is about 1103.7508030589.

The spelling of 1344661894 in words is "one billion, three hundred forty-four million, six hundred sixty-one thousand, eight hundred ninety-four".