2666345 has 8 divisors (see below), whose sum is σ = 3490560. Its totient is φ = 1939120.

The previous prime is 2666309. The next prime is 2666381. The reversal of 2666345 is 5436662.

It is an interprime number because it is at equal distance from previous prime (2666309) and next prime (2666381).

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

It is not a de Polignac number, because 2666345 - 2⁶ = 2666281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24185 + ... + 24294.

It is an arithmetic number, because the mean of its divisors is an integer number (436320).

2^2666345 is an apocalyptic number.

It is an amenable number.

2666345 is a deficient number, since it is larger than the sum of its proper divisors (824215).

2666345 is a wasteful number, since it uses less digits than its factorization.

2666345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48495.

The product of its digits is 25920, while the sum is 32.

The square root of 2666345 is about 1632.8946689851. The cubic root of 2666345 is about 138.6666788657. Note that the first 4 decimals are identical.

The spelling of 2666345 in words is "two million, six hundred sixty-six thousand, three hundred forty-five".