1330989 has 16 divisors (see below), whose sum is σ = 1975104. Its totient is φ = 790400.

The previous prime is 1330963. The next prime is 1330997. The reversal of 1330989 is 9890331.

It is a cyclic number.

It is not a de Polignac number, because 1330989 - 2⁵ = 1330957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1369 + ... + 2129.

It is an arithmetic number, because the mean of its divisors is an integer number (123444).

2^1330989 is an apocalyptic number.

It is an amenable number.

1330989 is a deficient number, since it is larger than the sum of its proper divisors (644115).

1330989 is a wasteful number, since it uses less digits than its factorization.

1330989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 1330989 is about 1153.6849656644. The cubic root of 1330989 is about 109.9996969689. Note that the first 3 decimals are identical.

The spelling of 1330989 in words is "one million, three hundred thirty thousand, nine hundred eighty-nine".