380664443 has 4 divisors (see below), whose sum is σ = 382791240. Its totient is φ = 378537648.

The previous prime is 380664439. The next prime is 380664457. The reversal of 380664443 is 344466083.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 380664443 - 2² = 380664439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 380664397 and 380664406.

It is not an unprimeable number, because it can be changed into a prime (380664463) 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, 1063130 + ... + 1063487.

It is an arithmetic number, because the mean of its divisors is an integer number (95697810).

Almost surely, 2^380664443 is an apocalyptic number.

380664443 is a deficient number, since it is larger than the sum of its proper divisors (2126797).

380664443 is a wasteful number, since it uses less digits than its factorization.

380664443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126796.

The product of its (nonzero) digits is 165888, while the sum is 38.

The square root of 380664443 is about 19510.6238495851. The cubic root of 380664443 is about 724.7375620882.

The spelling of 380664443 in words is "three hundred eighty million, six hundred sixty-four thousand, four hundred forty-three".