14442140 has 24 divisors (see below), whose sum is σ = 30430512. Its totient is φ = 5757440.

The previous prime is 14442121. The next prime is 14442151. The reversal of 14442140 is 4124441.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5900 + ... + 7980.

It is an arithmetic number, because the mean of its divisors is an integer number (1267938).

Almost surely, 2^14442140 is an apocalyptic number.

14442140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14442140 is an abundant number, since it is smaller than the sum of its proper divisors (15988372).

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

14442140 is a wasteful number, since it uses less digits than its factorization.

14442140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437 (or 2435 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 14442140 is about 3800.2815685157. The cubic root of 14442140 is about 243.5251672143.

Adding to 14442140 its reverse (4124441), we get a palindrome (18566581).

The spelling of 14442140 in words is "fourteen million, four hundred forty-two thousand, one hundred forty".