13942228 has 18 divisors (see below), whose sum is σ = 24720206. Its totient is φ = 6880224.

The previous prime is 13942223. The next prime is 13942237. The reversal of 13942228 is 82224931.

It can be written as a sum of positive squares in 3 ways, for example, as 311364 + 13630864 = 558^2 + 3692^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13942228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13942223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88726 + ... + 88882.

Almost surely, 2^13942228 is an apocalyptic number.

It is an amenable number.

13942228 is a deficient number, since it is larger than the sum of its proper divisors (10777978).

13942228 is a wasteful number, since it uses less digits than its factorization.

13942228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 308 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 13942228 is about 3733.9292976702. The cubic root of 13942228 is about 240.6822485476.

The spelling of 13942228 in words is "thirteen million, nine hundred forty-two thousand, two hundred twenty-eight".