2271916 has 6 divisors (see below), whose sum is σ = 3975860. Its totient is φ = 1135956.

The previous prime is 2271901. The next prime is 2271923. The reversal of 2271916 is 6191722.

It is a happy number.

It is a super-2 number, since 2×2271916² = 10323204622112, which contains 22 as substring.

It is a plaindrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283986 + ... + 283993.

2^2271916 is an apocalyptic number.

It is an amenable number.

2271916 is a deficient number, since it is larger than the sum of its proper divisors (1703944).

2271916 is a wasteful number, since it uses less digits than its factorization.

2271916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567983 (or 567981 counting only the distinct ones).

The product of its digits is 1512, while the sum is 28.

The square root of 2271916 is about 1507.2876301489. The cubic root of 2271916 is about 131.4611488691.

The spelling of 2271916 in words is "two million, two hundred seventy-one thousand, nine hundred sixteen".