380008643 has 4 divisors (see below), whose sum is σ = 434295600. Its totient is φ = 325721688.

The previous prime is 380008637. The next prime is 380008649. The reversal of 380008643 is 346800083.

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

It is an interprime number because it is at equal distance from previous prime (380008637) and next prime (380008649).

It is a cyclic number.

It is not a de Polignac number, because 380008643 - 2⁴ = 380008627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380008649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27143468 + ... + 27143481.

It is an arithmetic number, because the mean of its divisors is an integer number (108573900).

Almost surely, 2^380008643 is an apocalyptic number.

380008643 is a deficient number, since it is larger than the sum of its proper divisors (54286957).

380008643 is an equidigital number, since it uses as much as digits as its factorization.

380008643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54286956.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 380008643 is about 19493.8103766298. The cubic root of 380008643 is about 724.3211357588.

The spelling of 380008643 in words is "three hundred eighty million, eight thousand, six hundred forty-three".