13662466 has 4 divisors (see below), whose sum is σ = 20493702. Its totient is φ = 6831232.

The previous prime is 13662457. The next prime is 13662469. The reversal of 13662466 is 66426631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66426631 = 1367 ⋅48593.

It can be written as a sum of positive squares in only one way, i.e., 8532241 + 5130225 = 2921^2 + 2265^2 .

It is not an unprimeable number, because it can be changed into a prime (13662469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3415615 + ... + 3415618.

Almost surely, 2^13662466 is an apocalyptic number.

13662466 is a deficient number, since it is larger than the sum of its proper divisors (6831236).

13662466 is an equidigital number, since it uses as much as digits as its factorization.

13662466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6831235.

The product of its digits is 31104, while the sum is 34.

The square root of 13662466 is about 3696.2773164361. The cubic root of 13662466 is about 239.0615318656.

The spelling of 13662466 in words is "thirteen million, six hundred sixty-two thousand, four hundred sixty-six".