1330389 has 12 divisors (see below), whose sum is σ = 2005536. Its totient is φ = 848232.

The previous prime is 1330337. The next prime is 1330393. The reversal of 1330389 is 9830331.

It is not a de Polignac number, because 1330389 - 2¹⁶ = 1264853 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3007 + ... + 3420.

It is an arithmetic number, because the mean of its divisors is an integer number (167128).

2^1330389 is an apocalyptic number.

It is an amenable number.

1330389 is a deficient number, since it is larger than the sum of its proper divisors (675147).

1330389 is a wasteful number, since it uses less digits than its factorization.

1330389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6456 (or 6453 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 1330389 is about 1153.4249000260. The cubic root of 1330389 is about 109.9831654678.

The spelling of 1330389 in words is "one million, three hundred thirty thousand, three hundred eighty-nine".