2271628 has 12 divisors (see below), whose sum is σ = 4112640. Its totient is φ = 1096592.

The previous prime is 2271613. The next prime is 2271637. The reversal of 2271628 is 8261722.

It is a junction number, because it is equal to n+sod(n) for n = 2271596 and 2271605.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9676 + ... + 9907.

It is an arithmetic number, because the mean of its divisors is an integer number (342720).

2^2271628 is an apocalyptic number.

It is an amenable number.

2271628 is a deficient number, since it is larger than the sum of its proper divisors (1841012).

2271628 is a wasteful number, since it uses less digits than its factorization.

2271628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19616 (or 19614 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 2271628 is about 1507.1920912744. The cubic root of 2271628 is about 131.4555937326.

The spelling of 2271628 in words is "two million, two hundred seventy-one thousand, six hundred twenty-eight".