14521220 has 24 divisors (see below), whose sum is σ = 34851264. Its totient is φ = 4978656.

The previous prime is 14521207. The next prime is 14521253. The reversal of 14521220 is 2212541.

14521220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51722 + ... + 52001.

It is an arithmetic number, because the mean of its divisors is an integer number (1452136).

Almost surely, 2^14521220 is an apocalyptic number.

14521220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14521220 is an abundant number, since it is smaller than the sum of its proper divisors (20330044).

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

14521220 is a wasteful number, since it uses less digits than its factorization.

14521220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103739 (or 103737 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 14521220 is about 3810.6718567728. The cubic root of 14521220 is about 243.9688440018.

Adding to 14521220 its reverse (2212541), we get a palindrome (16733761).

It can be divided in two parts, 14521 and 220, that added together give a palindrome (14741).

The spelling of 14521220 in words is "fourteen million, five hundred twenty-one thousand, two hundred twenty".