2566742 has 8 divisors (see below), whose sum is σ = 3860136. Its totient is φ = 1280032.

The previous prime is 2566709. The next prime is 2566747. The reversal of 2566742 is 2476652.

2566742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×2566742³ = 50730355533318571464, which contains 333 as substring.

It is a d-powerful number, because it can be written as 2¹³ + 5⁹ + 6⁵ + 6⁵ + 7² + 4⁸ + 2¹⁹ .

It is a junction number, because it is equal to n+sod(n) for n = 2566699 and 2566708.

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 3 ways as a sum of consecutive naturals, for example, 563 + ... + 2334.

It is an arithmetic number, because the mean of its divisors is an integer number (482517).

2^2566742 is an apocalyptic number.

2566742 is a deficient number, since it is larger than the sum of its proper divisors (1293394).

2566742 is a wasteful number, since it uses less digits than its factorization.

2566742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3342.

The product of its digits is 20160, while the sum is 32.

The square root of 2566742 is about 1602.1054896604. The cubic root of 2566742 is about 136.9180606509.

The spelling of 2566742 in words is "two million, five hundred sixty-six thousand, seven hundred forty-two".