2664056 has 16 divisors (see below), whose sum is σ = 5167800. Its totient is φ = 1285984.

The previous prime is 2664049. The next prime is 2664059. The reversal of 2664056 is 6504662.

It is a super-2 number, since 2×2664056² = 14194388742272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5510 + ... + 5973.

2^2664056 is an apocalyptic number.

It is an amenable number.

2664056 is a deficient number, since it is larger than the sum of its proper divisors (2503744).

2664056 is a wasteful number, since it uses less digits than its factorization.

2664056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11518 (or 11514 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2664056 is about 1632.1936159659. The cubic root of 2664056 is about 138.6269867152.

Subtracting 2664056 from its reverse (6504662), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 2664056 in words is "two million, six hundred sixty-four thousand, fifty-six".