2645766 has 12 divisors (see below), whose sum is σ = 5732532. Its totient is φ = 881916.

The previous prime is 2645749. The next prime is 2645777. The reversal of 2645766 is 6675462.

2645766 is a `hidden beast` number, since 2 + 645 + 7 + 6 + 6 = 666.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2645766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73476 + ... + 73511.

It is an arithmetic number, because the mean of its divisors is an integer number (477711).

2^2645766 is an apocalyptic number.

2645766 is an abundant number, since it is smaller than the sum of its proper divisors (3086766).

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

2645766 is a wasteful number, since it uses less digits than its factorization.

2645766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146995 (or 146992 counting only the distinct ones).

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

The square root of 2645766 is about 1626.5810769833. The cubic root of 2645766 is about 138.3090113850.

The spelling of 2645766 in words is "two million, six hundred forty-five thousand, seven hundred sixty-six".