2566342 has 4 divisors (see below), whose sum is σ = 3849516. Its totient is φ = 1283170.

The previous prime is 2566339. The next prime is 2566351. The reversal of 2566342 is 2436652.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2566342² = 13172222521928, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁵ + 5⁹ + 6⁴ + 6⁶ + 3¹² + 4⁵ + 2¹⁵ .

It is a self number, because there is not a number n which added to its sum of digits gives 2566342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641584 + ... + 641587.

It is an arithmetic number, because the mean of its divisors is an integer number (962379).

2^2566342 is an apocalyptic number.

2566342 is a deficient number, since it is larger than the sum of its proper divisors (1283174).

2566342 is a wasteful number, since it uses less digits than its factorization.

2566342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283173.

The product of its digits is 8640, while the sum is 28.

The square root of 2566342 is about 1601.9806490716. The cubic root of 2566342 is about 136.9109478637.

The spelling of 2566342 in words is "two million, five hundred sixty-six thousand, three hundred forty-two".