14028640 has 24 divisors (see below), whose sum is σ = 33143040. Its totient is φ = 5611392.

The previous prime is 14028617. The next prime is 14028649. The reversal of 14028640 is 4682041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14028649) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 43680 + ... + 43999.

It is an arithmetic number, because the mean of its divisors is an integer number (1380960).

Almost surely, 2^14028640 is an apocalyptic number.

14028640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14028640 is an abundant number, since it is smaller than the sum of its proper divisors (19114400).

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

14028640 is an equidigital number, since it uses as much as digits as its factorization.

14028640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87694 (or 87686 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 14028640 is about 3745.4826124279. The cubic root of 14028640 is about 241.1784632232.

The spelling of 14028640 in words is "fourteen million, twenty-eight thousand, six hundred forty".