2666264 has 8 divisors (see below), whose sum is σ = 4999260. Its totient is φ = 1333128.

The previous prime is 2666227. The next prime is 2666267. The reversal of 2666264 is 4626662.

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2666264.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166634 + ... + 166649.

2^2666264 is an apocalyptic number.

It is an amenable number.

2666264 is a deficient number, since it is larger than the sum of its proper divisors (2332996).

2666264 is a wasteful number, since it uses less digits than its factorization.

2666264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333289 (or 333285 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 2666264 is about 1632.8698662171. The cubic root of 2666264 is about 138.6652746820.

It can be divided in two parts, 2 and 666264, that multiplied together give a triangular number (1332528 = T₁₆₃₂).

The spelling of 2666264 in words is "two million, six hundred sixty-six thousand, two hundred sixty-four".