14287220 has 12 divisors (see below), whose sum is σ = 30003204. Its totient is φ = 5714880.

The previous prime is 14287199. The next prime is 14287241. The reversal of 14287220 is 2278241.

It is an interprime number because it is at equal distance from previous prime (14287199) and next prime (14287241).

It can be written as a sum of positive squares in 2 ways, for example, as 10797796 + 3489424 = 3286^2 + 1868^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 14287220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357161 + ... + 357200.

It is an arithmetic number, because the mean of its divisors is an integer number (2500267).

Almost surely, 2^14287220 is an apocalyptic number.

14287220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14287220 is an abundant number, since it is smaller than the sum of its proper divisors (15715984).

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

14287220 is a wasteful number, since it uses less digits than its factorization.

14287220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714370 (or 714368 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 14287220 is about 3779.8439121212. The cubic root of 14287220 is about 242.6512748694.

The spelling of 14287220 in words is "fourteen million, two hundred eighty-seven thousand, two hundred twenty".