13638466 has 8 divisors (see below), whose sum is σ = 21534480. Its totient is φ = 6460308.

The previous prime is 13638463. The next prime is 13638467. The reversal of 13638466 is 66483631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13638463) 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, 179416 + ... + 179491.

It is an arithmetic number, because the mean of its divisors is an integer number (2691810).

Almost surely, 2^13638466 is an apocalyptic number.

13638466 is a deficient number, since it is larger than the sum of its proper divisors (7896014).

13638466 is a wasteful number, since it uses less digits than its factorization.

13638466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358928.

The product of its digits is 62208, while the sum is 37.

The square root of 13638466 is about 3693.0293797911. The cubic root of 13638466 is about 238.9214683367.

The spelling of 13638466 in words is "thirteen million, six hundred thirty-eight thousand, four hundred sixty-six".