14181420 has 48 divisors (see below), whose sum is σ = 43319808. Its totient is φ = 3437760.

The previous prime is 14181379. The next prime is 14181437. The reversal of 14181420 is 2418141.

It is a happy number.

It is a super-2 number, since 2×14181420² = 402225346432800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10084 + ... + 11403.

It is an arithmetic number, because the mean of its divisors is an integer number (902496).

Almost surely, 2^14181420 is an apocalyptic number.

14181420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14181420 is an abundant number, since it is smaller than the sum of its proper divisors (29138388).

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

14181420 is a wasteful number, since it uses less digits than its factorization.

14181420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21510 (or 21508 counting only the distinct ones).

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

The square root of 14181420 is about 3765.8226192958. The cubic root of 14181420 is about 242.0508282918.

Adding to 14181420 its reverse (2418141), we get a palindrome (16599561).

The spelling of 14181420 in words is "fourteen million, one hundred eighty-one thousand, four hundred twenty".