14007640 has 16 divisors (see below), whose sum is σ = 31517280. Its totient is φ = 5603040.

The previous prime is 14007599. The next prime is 14007659. The reversal of 14007640 is 4670041.

It is a congruent number.

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, 175056 + ... + 175135.

It is an arithmetic number, because the mean of its divisors is an integer number (1969830).

Almost surely, 2^14007640 is an apocalyptic number.

14007640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14007640 is an abundant number, since it is smaller than the sum of its proper divisors (17509640).

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

14007640 is a wasteful number, since it uses less digits than its factorization.

14007640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350202 (or 350198 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 14007640 is about 3742.6781854709. The cubic root of 14007640 is about 241.0580600804.

Adding to 14007640 its reverse (4670041), we get a palindrome (18677681).

The spelling of 14007640 in words is "fourteen million, seven thousand, six hundred forty".