14032640 has 72 divisors (see below), whose sum is σ = 35442960. Its totient is φ = 5308416.

The previous prime is 14032609. The next prime is 14032643. The reversal of 14032640 is 4623041.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14032643) 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, 24032 + ... + 24608.

Almost surely, 2^14032640 is an apocalyptic number.

14032640 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 14032640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17721480).

14032640 is an abundant number, since it is smaller than the sum of its proper divisors (21410320).

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

14032640 is an equidigital number, since it uses as much as digits as its factorization.

14032640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 14032640 is about 3746.0165509512. The cubic root of 14032640 is about 241.2013835295.

Adding to 14032640 its reverse (4623041), we get a palindrome (18655681).

The spelling of 14032640 in words is "fourteen million, thirty-two thousand, six hundred forty".