2272281 has 16 divisors (see below), whose sum is σ = 3396288. Its totient is φ = 1339200.

The previous prime is 2272273. The next prime is 2272297. The reversal of 2272281 is 1822722.

It is a happy number.

It is not a de Polignac number, because 2272281 - 2³ = 2272273 is a prime.

It is a super-2 number, since 2×2272281² = 10326521885922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2272201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291 + ... + 2151.

It is an arithmetic number, because the mean of its divisors is an integer number (212268).

2^2272281 is an apocalyptic number.

It is an amenable number.

2272281 is a deficient number, since it is larger than the sum of its proper divisors (1124007).

2272281 is a wasteful number, since it uses less digits than its factorization.

2272281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912.

The product of its digits is 896, while the sum is 24.

The square root of 2272281 is about 1507.4087037031. The cubic root of 2272281 is about 131.4681885587.

The spelling of 2272281 in words is "two million, two hundred seventy-two thousand, two hundred eighty-one".