13488478 has 4 divisors (see below), whose sum is σ = 20232720. Its totient is φ = 6744238.

The previous prime is 13488427. The next prime is 13488479. The reversal of 13488478 is 87488431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87488431 = 421 ⋅207811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13488479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3372118 + ... + 3372121.

It is an arithmetic number, because the mean of its divisors is an integer number (5058180).

Almost surely, 2^13488478 is an apocalyptic number.

13488478 is a deficient number, since it is larger than the sum of its proper divisors (6744242).

13488478 is an equidigital number, since it uses as much as digits as its factorization.

13488478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6744241.

The product of its digits is 172032, while the sum is 43.

The square root of 13488478 is about 3672.6663338779. Note that the first 3 decimals coincide. The cubic root of 13488478 is about 238.0423976442.

The spelling of 13488478 in words is "thirteen million, four hundred eighty-eight thousand, four hundred seventy-eight".