13216478 has 16 divisors (see below), whose sum is σ = 22325760. Its totient is φ = 5813400.

The previous prime is 13216477. The next prime is 13216481. The reversal of 13216478 is 87461231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13216477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9008 + ... + 10371.

It is an arithmetic number, because the mean of its divisors is an integer number (1395360).

Almost surely, 2^13216478 is an apocalyptic number.

13216478 is a deficient number, since it is larger than the sum of its proper divisors (9109282).

13216478 is a wasteful number, since it uses less digits than its factorization.

13216478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19423.

The product of its digits is 8064, while the sum is 32.

The square root of 13216478 is about 3635.4474277591. The cubic root of 13216478 is about 236.4314500508.

The spelling of 13216478 in words is "thirteen million, two hundred sixteen thousand, four hundred seventy-eight".