13782338 has 4 divisors (see below), whose sum is σ = 20673510. Its totient is φ = 6891168.

The previous prime is 13782331. The next prime is 13782371. The reversal of 13782338 is 83328731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10259209 + 3523129 = 3203^2 + 1877^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13782298 and 13782307.

It is not an unprimeable number, because it can be changed into a prime (13782331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3445583 + ... + 3445586.

Almost surely, 2^13782338 is an apocalyptic number.

13782338 is a deficient number, since it is larger than the sum of its proper divisors (6891172).

13782338 is an equidigital number, since it uses as much as digits as its factorization.

13782338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6891171.

The product of its digits is 24192, while the sum is 35.

The square root of 13782338 is about 3712.4571377997. The cubic root of 13782338 is about 239.7586578525.

The spelling of 13782338 in words is "thirteen million, seven hundred eighty-two thousand, three hundred thirty-eight".