380688369 has 4 divisors (see below), whose sum is σ = 507584496. Its totient is φ = 253792244.

The previous prime is 380688367. The next prime is 380688379. The reversal of 380688369 is 963886083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 380688369 - 2¹ = 380688367 is a prime.

It is a super-2 number, since 2×380688369² = 289847268583760322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (380688367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63448059 + ... + 63448064.

It is an arithmetic number, because the mean of its divisors is an integer number (126896124).

Almost surely, 2^380688369 is an apocalyptic number.

It is an amenable number.

380688369 is a deficient number, since it is larger than the sum of its proper divisors (126896127).

380688369 is a wasteful number, since it uses less digits than its factorization.

380688369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126896126.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 380688369 is about 19511.2369930766. The cubic root of 380688369 is about 724.7527458088.

The spelling of 380688369 in words is "three hundred eighty million, six hundred eighty-eight thousand, three hundred sixty-nine".