14228740 has 12 divisors (see below), whose sum is σ = 29880396. Its totient is φ = 5691488.

The previous prime is 14228737. The next prime is 14228741. The reversal of 14228740 is 4782241.

It can be written as a sum of positive squares in 2 ways, for example, as 7918596 + 6310144 = 2814^2 + 2512^2 .

It is a junction number, because it is equal to n+sod(n) for n = 14228699 and 14228708.

It is not an unprimeable number, because it can be changed into a prime (14228741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355699 + ... + 355738.

It is an arithmetic number, because the mean of its divisors is an integer number (2490033).

Almost surely, 2^14228740 is an apocalyptic number.

14228740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14228740 is an abundant number, since it is smaller than the sum of its proper divisors (15651656).

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

14228740 is a wasteful number, since it uses less digits than its factorization.

14228740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711446 (or 711444 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 14228740 is about 3772.1002107579. The cubic root of 14228740 is about 242.3197512717.

It can be divided in two parts, 142 and 28740, that added together give a palindrome (28882).

The spelling of 14228740 in words is "fourteen million, two hundred twenty-eight thousand, seven hundred forty".