14215140 has 72 divisors (see below), whose sum is σ = 43487808. Its totient is φ = 3758400.

The previous prime is 14215139. The next prime is 14215171. The reversal of 14215140 is 4151241.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26919 + ... + 27441.

Almost surely, 2^14215140 is an apocalyptic number.

14215140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14215140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21743904).

14215140 is an abundant number, since it is smaller than the sum of its proper divisors (29272668).

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

14215140 is a wasteful number, since it uses less digits than its factorization.

14215140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 14215140 is about 3770.2970705238. The cubic root of 14215140 is about 242.2425226216.

Adding to 14215140 its reverse (4151241), we get a palindrome (18366381).

It can be divided in two parts, 1421 and 5140, that added together give a 8-th power (6561 = 3⁸).

The spelling of 14215140 in words is "fourteen million, two hundred fifteen thousand, one hundred forty".