2531886 has 32 divisors (see below), whose sum is σ = 6041088. Its totient is φ = 691680.

The previous prime is 2531869. The next prime is 2531891. The reversal of 2531886 is 6881352.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345 + ... + 2276.

It is an arithmetic number, because the mean of its divisors is an integer number (188784).

2^2531886 is an apocalyptic number.

2531886 is an abundant number, since it is smaller than the sum of its proper divisors (3509202).

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

2531886 is a wasteful number, since it uses less digits than its factorization.

2531886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656.

The product of its digits is 11520, while the sum is 33.

The square root of 2531886 is about 1591.1901206330. The cubic root of 2531886 is about 136.2954577159.

The spelling of 2531886 in words is "two million, five hundred thirty-one thousand, eight hundred eighty-six".