4447818 has 32 divisors (see below), whose sum is σ = 10206720. Its totient is φ = 1434240.

The previous prime is 4447811. The next prime is 4447819. The reversal of 4447818 is 8187444.

It is a happy number.

4447818 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×4447818² = 39566169922248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4447811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346 + ... + 3002.

It is an arithmetic number, because the mean of its divisors is an integer number (318960).

Almost surely, 2^4447818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4447818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5103360).

4447818 is an abundant number, since it is smaller than the sum of its proper divisors (5758902).

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

4447818 is a wasteful number, since it uses less digits than its factorization.

4447818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2699 (or 2693 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 4447818 is about 2108.9850639585. The cubic root of 4447818 is about 164.4557272850.

The spelling of 4447818 in words is "four million, four hundred forty-seven thousand, eight hundred eighteen".