12380769 has 20 divisors (see below), whose sum is σ = 18589956. Its totient is φ = 8211456.

The previous prime is 12380759. The next prime is 12380773. The reversal of 12380769 is 96708321.

It can be written as a sum of positive squares in 2 ways, for example, as 3017169 + 9363600 = 1737^2 + 3060^2 .

It is not a de Polignac number, because 12380769 - 2⁸ = 12380513 is a prime.

It is a super-2 number, since 2×12380769² = 306566882062722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12380759) 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 19 ways as a sum of consecutive naturals, for example, 28377 + ... + 28809.

Almost surely, 2^12380769 is an apocalyptic number.

It is an amenable number.

12380769 is a deficient number, since it is larger than the sum of its proper divisors (6209187).

12380769 is an equidigital number, since it uses as much as digits as its factorization.

12380769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 12380769 is about 3518.6316942812. The cubic root of 12380769 is about 231.3391879985.

The spelling of 12380769 in words is "twelve million, three hundred eighty thousand, seven hundred sixty-nine".