380720221 has 8 divisors (see below), whose sum is σ = 436208000. Its totient is φ = 325507248.

The previous prime is 380720213. The next prime is 380720243. The reversal of 380720221 is 122027083.

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 380720221 - 2³ = 380720213 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 (380720521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65721 + ... + 71278.

It is an arithmetic number, because the mean of its divisors is an integer number (54526000).

Almost surely, 2^380720221 is an apocalyptic number.

It is an amenable number.

380720221 is a deficient number, since it is larger than the sum of its proper divisors (55487779).

380720221 is a wasteful number, since it uses less digits than its factorization.

380720221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137403.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 380720221 is about 19512.0532235846. The cubic root of 380720221 is about 724.7729584749.

The spelling of 380720221 in words is "three hundred eighty million, seven hundred twenty thousand, two hundred twenty-one".