2645768 has 8 divisors (see below), whose sum is σ = 4960830. Its totient is φ = 1322880.

The previous prime is 2645749. The next prime is 2645777. The reversal of 2645768 is 8675462.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2630884 + 14884 = 1622^2 + 122^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 2¹⁴ + 6⁷ + 4⁴ + 5⁸ + 7⁵ + 6⁸ + 8⁶ .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165353 + ... + 165368.

2^2645768 is an apocalyptic number.

It is an amenable number.

2645768 is a deficient number, since it is larger than the sum of its proper divisors (2315062).

2645768 is a wasteful number, since it uses less digits than its factorization.

2645768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330727 (or 330723 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 2645768 is about 1626.5816917696. The cubic root of 2645768 is about 138.3090462354.

The spelling of 2645768 in words is "two million, six hundred forty-five thousand, seven hundred sixty-eight".