14218140 has 48 divisors (see below), whose sum is σ = 41545728. Its totient is φ = 3626304.

The previous prime is 14218129. The next prime is 14218147. The reversal of 14218140 is 4181241.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14218147) 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, 3772 + ... + 6531.

It is an arithmetic number, because the mean of its divisors is an integer number (865536).

Almost surely, 2^14218140 is an apocalyptic number.

14218140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14218140 is an abundant number, since it is smaller than the sum of its proper divisors (27327588).

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

14218140 is a wasteful number, since it uses less digits than its factorization.

14218140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10338 (or 10336 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 14218140 is about 3770.6948961697. The cubic root of 14218140 is about 242.2595625863.

Adding to 14218140 its reverse (4181241), we get a palindrome (18399381).

The spelling of 14218140 in words is "fourteen million, two hundred eighteen thousand, one hundred forty".