2147228 has 18 divisors (see below), whose sum is σ = 3968496. Its totient is φ = 1016424.

The previous prime is 2147213. The next prime is 2147231. The reversal of 2147228 is 8227412.

It is a super-2 number, since 2×2147228² = 9221176167968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2147197 and 2147206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 701 + ... + 2187.

It is an arithmetic number, because the mean of its divisors is an integer number (220472).

2^2147228 is an apocalyptic number.

It is an amenable number.

2147228 is a deficient number, since it is larger than the sum of its proper divisors (1821268).

2147228 is a wasteful number, since it uses less digits than its factorization.

2147228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529 (or 1508 counting only the distinct ones).

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

The square root of 2147228 is about 1465.3422808341. The cubic root of 2147228 is about 129.0107957233.

The spelling of 2147228 in words is "two million, one hundred forty-seven thousand, two hundred twenty-eight".