2545670 has 16 divisors (see below), whose sum is σ = 4609440. Its totient is φ = 1012224.

The previous prime is 2545657. The next prime is 2545679. The reversal of 2545670 is 765452.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1271 + ... + 2589.

It is an arithmetic number, because the mean of its divisors is an integer number (288090).

2^2545670 is an apocalyptic number.

2545670 is a deficient number, since it is larger than the sum of its proper divisors (2063770).

2545670 is a wasteful number, since it uses less digits than its factorization.

2545670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 2545670 is about 1595.5155906477. The cubic root of 2545670 is about 136.5423484466.

The spelling of 2545670 in words is "two million, five hundred forty-five thousand, six hundred seventy".