1330939 has 4 divisors (see below), whose sum is σ = 1333480. Its totient is φ = 1328400.

The previous prime is 1330933. The next prime is 1330943. The reversal of 1330939 is 9390331.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1330939 - 2¹¹ = 1328891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330933) 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 3 ways as a sum of consecutive naturals, for example, 162 + ... + 1639.

It is an arithmetic number, because the mean of its divisors is an integer number (333370).

2^1330939 is an apocalyptic number.

1330939 is a deficient number, since it is larger than the sum of its proper divisors (2541).

1330939 is an equidigital number, since it uses as much as digits as its factorization.

1330939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540.

The product of its (nonzero) digits is 2187, while the sum is 28.

The square root of 1330939 is about 1153.6632957670. The cubic root of 1330939 is about 109.9983195336.

The spelling of 1330939 in words is "one million, three hundred thirty thousand, nine hundred thirty-nine".