14139940 has 48 divisors (see below), whose sum is σ = 31570560. Its totient is φ = 5308160.

The previous prime is 14139913. The next prime is 14139953. The reversal of 14139940 is 4993141.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26880 + ... + 27400.

It is an arithmetic number, because the mean of its divisors is an integer number (657720).

Almost surely, 2^14139940 is an apocalyptic number.

14139940 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 14139940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15785280).

14139940 is an abundant number, since it is smaller than the sum of its proper divisors (17430620).

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

14139940 is a wasteful number, since it uses less digits than its factorization.

14139940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 14139940 is about 3760.3111573379. The cubic root of 14139940 is about 241.8146019853.

The spelling of 14139940 in words is "fourteen million, one hundred thirty-nine thousand, nine hundred forty".