1349746839 has 24 divisors (see below), whose sum is σ = 2237907360. Its totient is φ = 767907648.

The previous prime is 1349746831. The next prime is 1349746847. The reversal of 1349746839 is 9386479431.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1349746831) and next prime (1349746847).

It is not a de Polignac number, because 1349746839 - 2³ = 1349746831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1349746831) 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 23 ways as a sum of consecutive naturals, for example, 32352 + ... + 61205.

It is an arithmetic number, because the mean of its divisors is an integer number (93246140).

Almost surely, 2^1349746839 is an apocalyptic number.

1349746839 is a deficient number, since it is larger than the sum of its proper divisors (888160521).

1349746839 is a wasteful number, since it uses less digits than its factorization.

1349746839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93799 (or 93796 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 1349746839 is about 36738.9008953725. The cubic root of 1349746839 is about 1105.1403598585.

The spelling of 1349746839 in words is "one billion, three hundred forty-nine million, seven hundred forty-six thousand, eight hundred thirty-nine".