2271892 has 24 divisors (see below), whose sum is σ = 4656960. Its totient is φ = 949440.

The previous prime is 2271883. The next prime is 2271901. The reversal of 2271892 is 2981722.

It is an interprime number because it is at equal distance from previous prime (2271883) and next prime (2271901).

It is a super-2 number, since 2×2271892² = 10322986519328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159 + ... + 2137.

It is an arithmetic number, because the mean of its divisors is an integer number (194040).

2^2271892 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2271892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2328480).

2271892 is an abundant number, since it is smaller than the sum of its proper divisors (2385068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2271892 is a wasteful number, since it uses less digits than its factorization.

2271892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031 (or 2029 counting only the distinct ones).

The product of its digits is 4032, while the sum is 31.

The square root of 2271892 is about 1507.2796688074. The cubic root of 2271892 is about 131.4606859590.

The spelling of 2271892 in words is "two million, two hundred seventy-one thousand, eight hundred ninety-two".