352447218 has 12 divisors (see below), whose sum is σ = 763635678. Its totient is φ = 117482400.

The previous prime is 352447211. The next prime is 352447223. The reversal of 352447218 is 812744253.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 212663889 + 139783329 = 14583^2 + 11823^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (352447211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9790183 + ... + 9790218.

Almost surely, 2^352447218 is an apocalyptic number.

352447218 is an abundant number, since it is smaller than the sum of its proper divisors (411188460).

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

352447218 is a wasteful number, since it uses less digits than its factorization.

352447218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19580409 (or 19580406 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 352447218 is about 18773.5776558439. The cubic root of 352447218 is about 706.3685623595.

The spelling of 352447218 in words is "three hundred fifty-two million, four hundred forty-seven thousand, two hundred eighteen".