1330889 has 12 divisors (see below), whose sum is σ = 1567044. Its totient is φ = 1126944.

The previous prime is 1330873. The next prime is 1330909. The reversal of 1330889 is 9880331.

It can be written as a sum of positive squares in 2 ways, for example, as 840889 + 490000 = 917^2 + 700^2 .

It is not a de Polignac number, because 1330889 - 2⁴ = 1330873 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1330859) 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, 7607 + ... + 7779.

It is an arithmetic number, because the mean of its divisors is an integer number (130587).

2^1330889 is an apocalyptic number.

It is an amenable number.

1330889 is a deficient number, since it is larger than the sum of its proper divisors (236155).

1330889 is a wasteful number, since it uses less digits than its factorization.

1330889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1330889 is about 1153.6416254626. The cubic root of 1330889 is about 109.9969420638.

The spelling of 1330889 in words is "one million, three hundred thirty thousand, eight hundred eighty-nine".