382471218 has 12 divisors (see below), whose sum is σ = 828687678. Its totient is φ = 127490400.

The previous prime is 382471207. The next prime is 382471223. The reversal of 382471218 is 812174283.

It can be written as a sum of positive squares in only one way, i.e., 365306769 + 17164449 = 19113^2 + 4143^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10624183 + ... + 10624218.

Almost surely, 2^382471218 is an apocalyptic number.

382471218 is an abundant number, since it is smaller than the sum of its proper divisors (446216460).

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

382471218 is a wasteful number, since it uses less digits than its factorization.

382471218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21248409 (or 21248406 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 382471218 is about 19556.8713755549. The cubic root of 382471218 is about 725.8823774110.

The spelling of 382471218 in words is "three hundred eighty-two million, four hundred seventy-one thousand, two hundred eighteen".