14421220 has 24 divisors (see below), whose sum is σ = 33038208. Its totient is φ = 5244000.

The previous prime is 14421203. The next prime is 14421221. The reversal of 14421220 is 2212441.

It is a junction number, because it is equal to n+sod(n) for n = 14421194 and 14421203.

It is not an unprimeable number, because it can be changed into a prime (14421221) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 32556 + ... + 32995.

It is an arithmetic number, because the mean of its divisors is an integer number (1376592).

Almost surely, 2^14421220 is an apocalyptic number.

14421220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14421220 is an abundant number, since it is smaller than the sum of its proper divisors (18616988).

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

14421220 is a wasteful number, since it uses less digits than its factorization.

14421220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65571 (or 65569 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 14421220 is about 3797.5281434112. The cubic root of 14421220 is about 243.4075251760.

Adding to 14421220 its reverse (2212441), we get a palindrome (16633661).

It can be divided in two parts, 14421 and 220, that added together give a palindrome (14641).

The spelling of 14421220 in words is "fourteen million, four hundred twenty-one thousand, two hundred twenty".