1339394859 has 36 divisors (see below), whose sum is σ = 2205360248. Its totient is φ = 811736640.

The previous prime is 1339394851. The next prime is 1339394867. The reversal of 1339394859 is 9584939331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1339394851) and next prime (1339394867).

It is not a de Polignac number, because 1339394859 - 2³ = 1339394851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1339394851) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6627 + ... + 52179.

Almost surely, 2^1339394859 is an apocalyptic number.

1339394859 is a deficient number, since it is larger than the sum of its proper divisors (865965389).

1339394859 is an equidigital number, since it uses as much as digits as its factorization.

1339394859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45590 (or 45567 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The square root of 1339394859 is about 36597.7439058749. The cubic root of 1339394859 is about 1102.3077882324.

The spelling of 1339394859 in words is "one billion, three hundred thirty-nine million, three hundred ninety-four thousand, eight hundred fifty-nine".