2666634 has 16 divisors (see below), whose sum is σ = 5359872. Its totient is φ = 884448.

The previous prime is 2666633. The next prime is 2666641. The reversal of 2666634 is 4366662.

It is a super-2 number, since 2×2666634² = 14221873779912, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2666595 and 2666604.

It is not an unprimeable number, because it can be changed into a prime (2666633) 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, 342 + ... + 2334.

It is an arithmetic number, because the mean of its divisors is an integer number (334992).

2^2666634 is an apocalyptic number.

2666634 is an abundant number, since it is smaller than the sum of its proper divisors (2693238).

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

2666634 is a wasteful number, since it uses less digits than its factorization.

2666634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221.

The product of its digits is 31104, while the sum is 33.

The square root of 2666634 is about 1632.9831597417. The cubic root of 2666634 is about 138.6716886228.

The spelling of 2666634 in words is "two million, six hundred sixty-six thousand, six hundred thirty-four".