14021220 has 24 divisors (see below), whose sum is σ = 39259584. Its totient is φ = 3738976.

The previous prime is 14021197. The next prime is 14021233. The reversal of 14021220 is 2212041.

It is a super-2 number, since 2×14021220² = 393189220576800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 14021196 and 14021205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116784 + ... + 116903.

It is an arithmetic number, because the mean of its divisors is an integer number (1635816).

Almost surely, 2^14021220 is an apocalyptic number.

14021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14021220 is an abundant number, since it is smaller than the sum of its proper divisors (25238364).

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

14021220 is a wasteful number, since it uses less digits than its factorization.

14021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233699 (or 233697 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 14021220 is about 3744.4919548585. The cubic root of 14021220 is about 241.1359345153.

Adding to 14021220 its reverse (2212041), we get a palindrome (16233261).

It can be divided in two parts, 14021 and 220, that added together give a palindrome (14241).

The spelling of 14021220 in words is "fourteen million, twenty-one thousand, two hundred twenty".