2664818 has 16 divisors (see below), whose sum is σ = 4558680. Its totient is φ = 1157376.

The previous prime is 2664817. The next prime is 2664829. The reversal of 2664818 is 8184662.

It can be written as a sum of positive squares in 4 ways, for example, as 2582449 + 82369 = 1607^2 + 287^2 .

It is not an unprimeable number, because it can be changed into a prime (2664811) 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, 2573 + ... + 3456.

2^2664818 is an apocalyptic number.

2664818 is a deficient number, since it is larger than the sum of its proper divisors (1893862).

2664818 is a wasteful number, since it uses less digits than its factorization.

2664818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6061.

The product of its digits is 18432, while the sum is 35.

The square root of 2664818 is about 1632.4270274655. The cubic root of 2664818 is about 138.6402026153.

The spelling of 2664818 in words is "two million, six hundred sixty-four thousand, eight hundred eighteen".