1330409769 has 16 divisors (see below), whose sum is σ = 1993391232. Its totient is φ = 783116928.

The previous prime is 1330409737. The next prime is 1330409789. The reversal of 1330409769 is 9679040331.

It is not a de Polignac number, because 1330409769 - 2⁵ = 1330409737 is a prime.

It is a super-2 number, since 2×1330409769² = 3539980306901266722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1330409769.

It is not an unprimeable number, because it can be changed into a prime (1330409789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 740692 + ... + 742485.

It is an arithmetic number, because the mean of its divisors is an integer number (124586952).

Almost surely, 2^1330409769 is an apocalyptic number.

It is an amenable number.

1330409769 is a deficient number, since it is larger than the sum of its proper divisors (662981463).

1330409769 is a wasteful number, since it uses less digits than its factorization.

1330409769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483216.

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 1330409769 is about 36474.7826450001. The cubic root of 1330409769 is about 1099.8373778878.

The spelling of 1330409769 in words is "one billion, three hundred thirty million, four hundred nine thousand, seven hundred sixty-nine".