43218264 has 64 divisors (see below), whose sum is σ = 111767040. Its totient is φ = 13917440.

The previous prime is 43218251. The next prime is 43218269. The reversal of 43218264 is 46281234.

43218264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43218269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164197 + ... + 164459.

It is an arithmetic number, because the mean of its divisors is an integer number (1746360).

Almost surely, 2^43218264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43218264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55883520).

43218264 is an abundant number, since it is smaller than the sum of its proper divisors (68548776).

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

43218264 is a wasteful number, since it uses less digits than its factorization.

43218264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 476 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 43218264 is about 6574.0599327965. The cubic root of 43218264 is about 350.9315700075.

Adding to 43218264 its reverse (46281234), we get a palindrome (89499498).

The spelling of 43218264 in words is "forty-three million, two hundred eighteen thousand, two hundred sixty-four".