2566146 has 32 divisors (see below), whose sum is σ = 5702400. Its totient is φ = 763280.

The previous prime is 2566141. The next prime is 2566163. The reversal of 2566146 is 6416652.

It is not an unprimeable number, because it can be changed into a prime (2566141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3565 + ... + 4223.

It is an arithmetic number, because the mean of its divisors is an integer number (178200).

2^2566146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2566146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2851200).

2566146 is an abundant number, since it is smaller than the sum of its proper divisors (3136254).

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

2566146 is a wasteful number, since it uses less digits than its factorization.

2566146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734.

The product of its digits is 8640, while the sum is 30.

The square root of 2566146 is about 1601.9194736316. The cubic root of 2566146 is about 136.9074623281.

The spelling of 2566146 in words is "two million, five hundred sixty-six thousand, one hundred forty-six".