2542866 has 16 divisors (see below), whose sum is σ = 5124000. Its totient is φ = 841248.

The previous prime is 2542853. The next prime is 2542879. The reversal of 2542866 is 6682452.

It is an interprime number because it is at equal distance from previous prime (2542853) and next prime (2542879).

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, 691 + ... + 2358.

It is an arithmetic number, because the mean of its divisors is an integer number (320250).

2^2542866 is an apocalyptic number.

2542866 is an abundant number, since it is smaller than the sum of its proper divisors (2581134).

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

2542866 is a wasteful number, since it uses less digits than its factorization.

2542866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3193.

The product of its digits is 23040, while the sum is 33.

The square root of 2542866 is about 1594.6366357261. The cubic root of 2542866 is about 136.4921972220.

The spelling of 2542866 in words is "two million, five hundred forty-two thousand, eight hundred sixty-six".