2231886 has 8 divisors (see below), whose sum is σ = 4463784. Its totient is φ = 743960.

The previous prime is 2231881. The next prime is 2231891. The reversal of 2231886 is 6881322.

It is an interprime number because it is at equal distance from previous prime (2231881) and next prime (2231891).

It is a sphenic number, since it is the product of 3 distinct primes.

2231886 is an admirable number.

It is a super-3 number, since 3×2231886³ = 33353182413635203368, which contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231881) 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, 185985 + ... + 185996.

It is an arithmetic number, because the mean of its divisors is an integer number (557973).

2^2231886 is an apocalyptic number.

2231886 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2231886 is a wasteful number, since it uses less digits than its factorization.

2231886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371986.

The product of its digits is 4608, while the sum is 30.

The square root of 2231886 is about 1493.9497983533. The cubic root of 2231886 is about 130.6844765511.

The spelling of 2231886 in words is "two million, two hundred thirty-one thousand, eight hundred eighty-six".