14420140 has 24 divisors (see below), whose sum is σ = 34608672. Its totient is φ = 4944000.

The previous prime is 14420123. The next prime is 14420141. The reversal of 14420140 is 4102441.

It is not an unprimeable number, because it can be changed into a prime (14420141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51361 + ... + 51640.

It is an arithmetic number, because the mean of its divisors is an integer number (1442028).

Almost surely, 2^14420140 is an apocalyptic number.

14420140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14420140 is an abundant number, since it is smaller than the sum of its proper divisors (20188532).

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

14420140 is a wasteful number, since it uses less digits than its factorization.

14420140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103017 (or 103015 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 14420140 is about 3797.3859429876. The cubic root of 14420140 is about 243.4014487902.

Adding to 14420140 its reverse (4102441), we get a palindrome (18522581).

The spelling of 14420140 in words is "fourteen million, four hundred twenty thousand, one hundred forty".