14218040 has 32 divisors (see below), whose sum is σ = 32175360. Its totient is φ = 5654400.

The previous prime is 14218019. The next prime is 14218049. The reversal of 14218040 is 4081241.

It is a super-2 number, since 2×14218040² = 404305322883200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14218049) 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 7 ways as a sum of consecutive naturals, for example, 6710 + ... + 8570.

It is an arithmetic number, because the mean of its divisors is an integer number (1005480).

Almost surely, 2^14218040 is an apocalyptic number.

14218040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14218040 is an abundant number, since it is smaller than the sum of its proper divisors (17957320).

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

14218040 is a wasteful number, since it uses less digits than its factorization.

14218040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063 (or 2059 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 14218040 is about 3770.6816359910. The cubic root of 14218040 is about 242.2589946261.

Adding to 14218040 its reverse (4081241), we get a palindrome (18299281).

The spelling of 14218040 in words is "fourteen million, two hundred eighteen thousand, forty".