14023640 has 64 divisors (see below), whose sum is σ = 34292160. Its totient is φ = 5140480.

The previous prime is 14023637. The next prime is 14023643. The reversal of 14023640 is 4632041.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (14023637) and next prime (14023643).

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 (14023643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27629 + ... + 28131.

It is an arithmetic number, because the mean of its divisors is an integer number (535815).

Almost surely, 2^14023640 is an apocalyptic number.

14023640 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 14023640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17146080).

14023640 is an abundant number, since it is smaller than the sum of its proper divisors (20268520).

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

14023640 is a wasteful number, since it uses less digits than its factorization.

14023640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 568 counting only the distinct ones).

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

The square root of 14023640 is about 3744.8150822170. The cubic root of 14023640 is about 241.1498067127.

Adding to 14023640 its reverse (4632041), we get a palindrome (18655681).

The spelling of 14023640 in words is "fourteen million, twenty-three thousand, six hundred forty".