13973228 has 6 divisors (see below), whose sum is σ = 24453156. Its totient is φ = 6986612.

The previous prime is 13973221. The next prime is 13973233. The reversal of 13973228 is 82237931.

It is a super-2 number, since 2×13973228² = 390502201479968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13973221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1746650 + ... + 1746657.

It is an arithmetic number, because the mean of its divisors is an integer number (4075526).

Almost surely, 2^13973228 is an apocalyptic number.

It is an amenable number.

13973228 is a deficient number, since it is larger than the sum of its proper divisors (10479928).

13973228 is a wasteful number, since it uses less digits than its factorization.

13973228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493311 (or 3493309 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 13973228 is about 3738.0781158237. The cubic root of 13973228 is about 240.8604990316.

The spelling of 13973228 in words is "thirteen million, nine hundred seventy-three thousand, two hundred twenty-eight".