4218280 has 32 divisors (see below), whose sum is σ = 10355040. Its totient is φ = 1533760.

The previous prime is 4218271. The next prime is 4218281. The reversal of 4218280 is 828124.

It is not an unprimeable number, because it can be changed into a prime (4218281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4354 + ... + 5233.

It is an arithmetic number, because the mean of its divisors is an integer number (323595).

Almost surely, 2^4218280 is an apocalyptic number.

4218280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4218280 is an abundant number, since it is smaller than the sum of its proper divisors (6136760).

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

4218280 is a wasteful number, since it uses less digits than its factorization.

4218280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9609 (or 9605 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 4218280 is about 2053.8451743011. The cubic root of 4218280 is about 161.5766010300.

The spelling of 4218280 in words is "four million, two hundred eighteen thousand, two hundred eighty".