379981220 has 24 divisors (see below), whose sum is σ = 804057408. Its totient is φ = 150831200.

The previous prime is 379981213. The next prime is 379981223. The reversal of 379981220 is 22189973.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (379981223) 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, 69896 + ... + 75135.

It is an arithmetic number, because the mean of its divisors is an integer number (33502392).

Almost surely, 2^379981220 is an apocalyptic number.

It is an amenable number.

379981220 is an abundant number, since it is smaller than the sum of its proper divisors (424076188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

379981220 is a wasteful number, since it uses less digits than its factorization.

379981220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145171 (or 145169 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 379981220 is about 19493.1069868300. The cubic root of 379981220 is about 724.3037120004.

The spelling of 379981220 in words is "three hundred seventy-nine million, nine hundred eighty-one thousand, two hundred twenty".