13206478 has 8 divisors (see below), whose sum is σ = 19880568. Its totient is φ = 6579624.

The previous prime is 13206449. The next prime is 13206491. The reversal of 13206478 is 87460231.

13206478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×13206478² = 348822122328968, which contains 22 as substring.

It is a congruent number.

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, 11101 + ... + 12232.

It is an arithmetic number, because the mean of its divisors is an integer number (2485071).

Almost surely, 2^13206478 is an apocalyptic number.

13206478 is a deficient number, since it is larger than the sum of its proper divisors (6674090).

13206478 is a wasteful number, since it uses less digits than its factorization.

13206478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23618.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 13206478 is about 3634.0718209744. The cubic root of 13206478 is about 236.3718045321.

The spelling of 13206478 in words is "thirteen million, two hundred six thousand, four hundred seventy-eight".