380838661 has 8 divisors (see below), whose sum is σ = 437650304. Its totient is φ = 324628560.

The previous prime is 380838637. The next prime is 380838671. The reversal of 380838661 is 166838083.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 380838661 - 2⁹ = 380838149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380838671) 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 7 ways as a sum of consecutive naturals, for example, 149025 + ... + 151558.

It is an arithmetic number, because the mean of its divisors is an integer number (54706288).

Almost surely, 2^380838661 is an apocalyptic number.

It is an amenable number.

380838661 is a deficient number, since it is larger than the sum of its proper divisors (56811643).

380838661 is a wasteful number, since it uses less digits than its factorization.

380838661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300771.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 380838661 is about 19515.0880346464. The cubic root of 380838661 is about 724.8481083307.

The spelling of 380838661 in words is "three hundred eighty million, eight hundred thirty-eight thousand, six hundred sixty-one".