2566746 has 48 divisors (see below), whose sum is σ = 6849024. Its totient is φ = 676512.

The previous prime is 2566709. The next prime is 2566747. The reversal of 2566746 is 6476652.

2566746 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2566746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 855 + ... + 2421.

It is an arithmetic number, because the mean of its divisors is an integer number (142688).

2^2566746 is an apocalyptic number.

2566746 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2566746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3424512).

2566746 is an abundant number, since it is smaller than the sum of its proper divisors (4282278).

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

2566746 is a wasteful number, since it uses less digits than its factorization.

2566746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595 (or 1592 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 2566746 is about 1602.1067380172. The cubic root of 2566746 is about 136.9181317751.

The spelling of 2566746 in words is "two million, five hundred sixty-six thousand, seven hundred forty-six".