13404866 has 8 divisors (see below), whose sum is σ = 20486844. Its totient is φ = 6575920.

The previous prime is 13404829. The next prime is 13404877. The reversal of 13404866 is 66840431.

It can be written as a sum of positive squares in 2 ways, for example, as 13169641 + 235225 = 3629^2 + 485^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63125 + ... + 63336.

Almost surely, 2^13404866 is an apocalyptic number.

13404866 is a deficient number, since it is larger than the sum of its proper divisors (7081978).

13404866 is a wasteful number, since it uses less digits than its factorization.

13404866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126516.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 13404866 is about 3661.2656281674. The cubic root of 13404866 is about 237.5495209756.

The spelling of 13404866 in words is "thirteen million, four hundred four thousand, eight hundred sixty-six".