2566738 has 8 divisors (see below), whose sum is σ = 3974400. Its totient is φ = 1241940.

The previous prime is 2566709. The next prime is 2566747. The reversal of 2566738 is 8376652.

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

It is a junction number, because it is equal to n+sod(n) for n = 2566697 and 2566706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20638 + ... + 20761.

It is an arithmetic number, because the mean of its divisors is an integer number (496800).

2^2566738 is an apocalyptic number.

2566738 is a deficient number, since it is larger than the sum of its proper divisors (1407662).

2566738 is a wasteful number, since it uses less digits than its factorization.

2566738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41432.

The product of its digits is 60480, while the sum is 37.

The square root of 2566738 is about 1602.1042413027. The cubic root of 2566738 is about 136.9179895267.

The spelling of 2566738 in words is "two million, five hundred sixty-six thousand, seven hundred thirty-eight".