2271908 has 12 divisors (see below), whose sum is σ = 3989580. Its totient is φ = 1132032.

The previous prime is 2271901. The next prime is 2271923. The reversal of 2271908 is 8091722.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1721344 + 550564 = 1312^2 + 742^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2271901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608 + ... + 2216.

It is an arithmetic number, because the mean of its divisors is an integer number (332465).

2^2271908 is an apocalyptic number.

It is an amenable number.

2271908 is a deficient number, since it is larger than the sum of its proper divisors (1717672).

2271908 is a wasteful number, since it uses less digits than its factorization.

2271908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966 (or 1964 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 2271908 is about 1507.2849763731. The cubic root of 2271908 is about 131.4609945661.

The spelling of 2271908 in words is "two million, two hundred seventy-one thousand, nine hundred eight".