383479220 has 24 divisors (see below), whose sum is σ = 816341064. Its totient is φ = 151289856.

The previous prime is 383479199. The next prime is 383479237. The reversal of 383479220 is 22974383.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 86192656 + 297286564 = 9284^2 + 17242^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129869 + ... + 132788.

It is an arithmetic number, because the mean of its divisors is an integer number (34014211).

Almost surely, 2^383479220 is an apocalyptic number.

It is an amenable number.

383479220 is an abundant number, since it is smaller than the sum of its proper divisors (432861844).

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

383479220 is a wasteful number, since it uses less digits than its factorization.

383479220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262739 (or 262737 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 383479220 is about 19582.6254623837. The cubic root of 383479220 is about 726.5195051245.

The spelling of 383479220 in words is "three hundred eighty-three million, four hundred seventy-nine thousand, two hundred twenty".