14424140 has 12 divisors (see below), whose sum is σ = 30290736. Its totient is φ = 5769648.

The previous prime is 14424139. The next prime is 14424181. The reversal of 14424140 is 4142441.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 721207 = 14424140 / (1 + 4 + 4 + 2 + 4 + 1 + 4 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360584 + ... + 360623.

It is an arithmetic number, because the mean of its divisors is an integer number (2524228).

Almost surely, 2^14424140 is an apocalyptic number.

14424140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14424140 is an abundant number, since it is smaller than the sum of its proper divisors (15866596).

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

14424140 is a wasteful number, since it uses less digits than its factorization.

14424140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721216 (or 721214 counting only the distinct ones).

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

The square root of 14424140 is about 3797.9125845654. The cubic root of 14424140 is about 243.4239524040.

Adding to 14424140 its reverse (4142441), we get a palindrome (18566581).

The spelling of 14424140 in words is "fourteen million, four hundred twenty-four thousand, one hundred forty".