13328474 has 4 divisors (see below), whose sum is σ = 19992714. Its totient is φ = 6664236.

The previous prime is 13328467. The next prime is 13328489. The reversal of 13328474 is 47482331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47482331 = 13 ⋅3652487.

It can be written as a sum of positive squares in only one way, i.e., 7252249 + 6076225 = 2693^2 + 2465^2 .

It is a super-3 number, since 3×13328474³ (a number of 22 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13328474.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3332117 + ... + 3332120.

Almost surely, 2^13328474 is an apocalyptic number.

13328474 is a deficient number, since it is larger than the sum of its proper divisors (6664240).

13328474 is an equidigital number, since it uses as much as digits as its factorization.

13328474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6664239.

The product of its digits is 16128, while the sum is 32.

The square root of 13328474 is about 3650.8182644443. The cubic root of 13328474 is about 237.0974099154.

The spelling of 13328474 in words is "thirteen million, three hundred twenty-eight thousand, four hundred seventy-four".