13400678 has 8 divisors (see below), whose sum is σ = 20285760. Its totient is φ = 6638760.

The previous prime is 13400657. The next prime is 13400689. The reversal of 13400678 is 87600431.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13400678.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30518 + ... + 30953.

It is an arithmetic number, because the mean of its divisors is an integer number (2535720).

Almost surely, 2^13400678 is an apocalyptic number.

13400678 is a deficient number, since it is larger than the sum of its proper divisors (6885082).

13400678 is a wasteful number, since it uses less digits than its factorization.

13400678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61582.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 13400678 is about 3660.6936501161. The cubic root of 13400678 is about 237.5247796860.

The spelling of 13400678 in words is "thirteen million, four hundred thousand, six hundred seventy-eight".