2666536 has 32 divisors (see below), whose sum is σ = 5378400. Its totient is φ = 1235520.

The previous prime is 2666519. The next prime is 2666537. The reversal of 2666536 is 6356662.

It is a super-2 number, since 2×2666536² = 14220828478592, which contains 22 as substring.

Its product of digits (38880) is a multiple of the sum of its prime divisors (405).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7891 + ... + 8221.

It is an arithmetic number, because the mean of its divisors is an integer number (168075).

2^2666536 is an apocalyptic number.

It is an amenable number.

2666536 is an abundant number, since it is smaller than the sum of its proper divisors (2711864).

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

2666536 is a wasteful number, since it uses less digits than its factorization.

2666536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 405 counting only the distinct ones).

The product of its digits is 38880, while the sum is 34.

The square root of 2666536 is about 1632.9531530329. The cubic root of 2666536 is about 138.6699898530.

The spelling of 2666536 in words is "two million, six hundred sixty-six thousand, five hundred thirty-six".