4180447818 has 12 divisors (see below), whose sum is σ = 9057636978. Its totient is φ = 1393482600.

The previous prime is 4180447813. The next prime is 4180447829. The reversal of 4180447818 is 8187440814.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2266997769 + 1913450049 = 47613^2 + 43743^2 .

It is a super-2 number, since 2×4180447818² = 34952287918041922248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4180447813) 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, 116123533 + ... + 116123568.

Almost surely, 2^4180447818 is an apocalyptic number.

4180447818 is an abundant number, since it is smaller than the sum of its proper divisors (4877189160).

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

4180447818 is a wasteful number, since it uses less digits than its factorization.

4180447818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232247109 (or 232247106 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 45.

The square root of 4180447818 is about 64656.3826547697. The cubic root of 4180447818 is about 1610.9210960688.

The spelling of 4180447818 in words is "four billion, one hundred eighty million, four hundred forty-seven thousand, eight hundred eighteen".