13328426 has 4 divisors (see below), whose sum is σ = 19992642. Its totient is φ = 6664212.

The previous prime is 13328417. The next prime is 13328449. The reversal of 13328426 is 62482331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62482331 = 827 ⋅75553.

It can be written as a sum of positive squares in only one way, i.e., 13315201 + 13225 = 3649^2 + 115^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3332105 + ... + 3332108.

Almost surely, 2^13328426 is an apocalyptic number.

13328426 is a deficient number, since it is larger than the sum of its proper divisors (6664216).

13328426 is an equidigital number, since it uses as much as digits as its factorization.

13328426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6664215.

The product of its digits is 6912, while the sum is 29.

The square root of 13328426 is about 3650.8116905696. The cubic root of 13328426 is about 237.0971252944.

The spelling of 13328426 in words is "thirteen million, three hundred twenty-eight thousand, four hundred twenty-six".