14005220 has 24 divisors (see below), whose sum is σ = 29676024. Its totient is φ = 5551616.

The previous prime is 14005217. The next prime is 14005241. The reversal of 14005220 is 2250041.

It can be written as a sum of positive squares in 4 ways, for example, as 47524 + 13957696 = 218^2 + 3736^2 .

It is a super-2 number, since 2×14005220² = 392292374496800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 14005195 and 14005204.

It is a congruent number.

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, 839 + ... + 5358.

It is an arithmetic number, because the mean of its divisors is an integer number (1236501).

Almost surely, 2^14005220 is an apocalyptic number.

14005220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14005220 is an abundant number, since it is smaller than the sum of its proper divisors (15670804).

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

14005220 is a wasteful number, since it uses less digits than its factorization.

14005220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6319 (or 6317 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 14005220 is about 3742.3548736057. The cubic root of 14005220 is about 241.0441773206.

Adding to 14005220 its reverse (2250041), we get a palindrome (16255261).

The spelling of 14005220 in words is "fourteen million, five thousand, two hundred twenty".