2664918 has 48 divisors (see below), whose sum is σ = 6211296. Its totient is φ = 823680.

The previous prime is 2664911. The next prime is 2664923. The reversal of 2664918 is 8194662.

2664918 is a `hidden beast` number, since 2 + 6 + 649 + 1 + 8 = 666.

2664918 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16896 + ... + 17052.

It is an arithmetic number, because the mean of its divisors is an integer number (129402).

2^2664918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2664918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3105648).

2664918 is an abundant number, since it is smaller than the sum of its proper divisors (3546378).

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

2664918 is a wasteful number, since it uses less digits than its factorization.

2664918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 226 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 2664918 is about 1632.4576564187. The cubic root of 2664918 is about 138.6419367984.

It can be divided in two parts, 266 and 4918, that added together give a square (5184 = 72²).

The spelling of 2664918 in words is "two million, six hundred sixty-four thousand, nine hundred eighteen".