1330739 has 4 divisors (see below), whose sum is σ = 1346856. Its totient is φ = 1314624.

The previous prime is 1330733. The next prime is 1330751. The reversal of 1330739 is 9370331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9370331 = 1733 ⋅5407.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1330739 is a prime.

It is a super-2 number, since 2×1330739² = 3541732572242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7934 + ... + 8099.

It is an arithmetic number, because the mean of its divisors is an integer number (336714).

2^1330739 is an apocalyptic number.

1330739 is a deficient number, since it is larger than the sum of its proper divisors (16117).

1330739 is an equidigital number, since it uses as much as digits as its factorization.

1330739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16116.

The product of its (nonzero) digits is 1701, while the sum is 26.

The square root of 1330739 is about 1153.5766121069. The cubic root of 1330739 is about 109.9928094473.

The spelling of 1330739 in words is "one million, three hundred thirty thousand, seven hundred thirty-nine".