14840 has 32 divisors (see below), whose sum is σ = 38880. Its totient is φ = 4992.

The previous prime is 14831. The next prime is 14843. The reversal of 14840 is 4841.

14840 = 43² + 44² + ... + 49².

It is a happy number.

It is an Ulam number.

It is a nialpdrome in base 5.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14843) by changing a digit.

14840 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254 + ... + 306.

It is an arithmetic number, because the mean of its divisors is an integer number (1215).

2¹⁴⁸⁴⁰ is an apocalyptic number.

14840 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 14840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19440).

14840 is an abundant number, since it is smaller than the sum of its proper divisors (24040).

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

14840 is a wasteful number, since it uses less digits than its factorization.

14840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 14840 is about 121.8195386627. The cubic root of 14840 is about 24.5741195641.

Subtracting from 14840 its reverse (4841), we obtain a palindrome (9999).

The spelling of 14840 in words is "fourteen thousand, eight hundred forty".