12738066 has 32 divisors (see below), whose sum is σ = 29429568. Its totient is φ = 3632640.

The previous prime is 12738059. The next prime is 12738119. The reversal of 12738066 is 66083721.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4555 + ... + 6798.

It is an arithmetic number, because the mean of its divisors is an integer number (919674).

Almost surely, 2^12738066 is an apocalyptic number.

12738066 is an abundant number, since it is smaller than the sum of its proper divisors (16691502).

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

12738066 is a wasteful number, since it uses less digits than its factorization.

12738066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11386.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 12738066 is about 3569.0427288000. The cubic root of 12738066 is about 233.5435253366.

It can be divided in two parts, 1273 and 8066, that added together give a palindrome (9339).

The spelling of 12738066 in words is "twelve million, seven hundred thirty-eight thousand, sixty-six".