380648221 has 4 divisors (see below), whose sum is σ = 380719744. Its totient is φ = 380576700.

The previous prime is 380648197. The next prime is 380648237. The reversal of 380648221 is 122846083.

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 380648221 - 2⁵ = 380648189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380648621) 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, 27075 + ... + 38656.

It is an arithmetic number, because the mean of its divisors is an integer number (95179936).

Almost surely, 2^380648221 is an apocalyptic number.

It is an amenable number.

380648221 is a deficient number, since it is larger than the sum of its proper divisors (71523).

380648221 is an equidigital number, since it uses as much as digits as its factorization.

380648221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71522.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 380648221 is about 19510.2081229289. The cubic root of 380648221 is about 724.7272670546.

The spelling of 380648221 in words is "three hundred eighty million, six hundred forty-eight thousand, two hundred twenty-one".