13026666 has 16 divisors (see below), whose sum is σ = 27424800. Its totient is φ = 4113648.

The previous prime is 13026659. The next prime is 13026667. The reversal of 13026666 is 66662031.

13026666 = 819² + 820² + ... + 837².

13026666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

13026666 is a modest number, since divided by 6666 gives 1302 as remainder.

It is not an unprimeable number, because it can be changed into a prime (13026667) 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, 57021 + ... + 57248.

It is an arithmetic number, because the mean of its divisors is an integer number (1714050).

Almost surely, 2^13026666 is an apocalyptic number.

13026666 is an abundant number, since it is smaller than the sum of its proper divisors (14398134).

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

13026666 is a wasteful number, since it uses less digits than its factorization.

13026666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114293.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 13026666 is about 3609.2472899484. The cubic root of 13026666 is about 235.2941299730.

Adding to 13026666 its reverse (66662031), we get a palindrome (79688697).

It can be divided in two parts, 130 and 26666, that added together give a triangular number (26796 = T₂₃₁).

The spelling of 13026666 in words is "thirteen million, twenty-six thousand, six hundred sixty-six".