14522640 has 80 divisors (see below), whose sum is σ = 49121856. Its totient is φ = 3520000.

The previous prime is 14522639. The next prime is 14522653. The reversal of 14522640 is 4622541.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 14522640.

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, 111 + ... + 5390.

Almost surely, 2^14522640 is an apocalyptic number.

14522640 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 14522640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24560928).

14522640 is an abundant number, since it is smaller than the sum of its proper divisors (34599216).

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

14522640 is a wasteful number, since it uses less digits than its factorization.

14522640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5528 (or 5522 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 14522640 is about 3810.8581710686. The cubic root of 14522640 is about 243.9767961451.

Subtracting from 14522640 its reverse (4622541), we obtain a palindrome (9900099).

The spelling of 14522640 in words is "fourteen million, five hundred twenty-two thousand, six hundred forty".