1344691338 has 32 divisors (see below), whose sum is σ = 2759049216. Its totient is φ = 436705968.

The previous prime is 1344691319. The next prime is 1344691339. The reversal of 1344691338 is 8331964431.

It is a self number, because there is not a number n which added to its sum of digits gives 1344691338.

It is not an unprimeable number, because it can be changed into a prime (1344691339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52195 + ... + 73577.

It is an arithmetic number, because the mean of its divisors is an integer number (86220288).

Almost surely, 2^1344691338 is an apocalyptic number.

1344691338 is an abundant number, since it is smaller than the sum of its proper divisors (1414357878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1344691338 is a wasteful number, since it uses less digits than its factorization.

1344691338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21658.

The product of its digits is 186624, while the sum is 42.

The square root of 1344691338 is about 36670.0332424174. The cubic root of 1344691338 is about 1103.7588592604.

The spelling of 1344691338 in words is "one billion, three hundred forty-four million, six hundred ninety-one thousand, three hundred thirty-eight".