2666330 has 8 divisors (see below), whose sum is σ = 4799412. Its totient is φ = 1066528.

The previous prime is 2666309. The next prime is 2666381. The reversal of 2666330 is 336662.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2569609 + 96721 = 1603^2 + 311^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2666330.

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, 133307 + ... + 133326.

2^2666330 is an apocalyptic number.

2666330 is a deficient number, since it is larger than the sum of its proper divisors (2133082).

2666330 is a wasteful number, since it uses less digits than its factorization.

2666330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266640.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 2666330 is about 1632.8900759084. The cubic root of 2666330 is about 138.6664188338. Note that the first 3 decimals are identical.

The spelling of 2666330 in words is "two million, six hundred sixty-six thousand, three hundred thirty".