13670338 has 12 divisors (see below), whose sum is σ = 22539510. Its totient is φ = 6213680.

The previous prime is 13670333. The next prime is 13670341. The reversal of 13670338 is 83307631.

It can be written as a sum of positive squares in only one way, i.e., 12623809 + 1046529 = 3553^2 + 1023^2 .

It is not an unprimeable number, because it can be changed into a prime (13670333) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 28003 + ... + 28486.

Almost surely, 2^13670338 is an apocalyptic number.

13670338 is a deficient number, since it is larger than the sum of its proper divisors (8869172).

13670338 is a wasteful number, since it uses less digits than its factorization.

13670338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56513 (or 56502 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 13670338 is about 3697.3420182612. The cubic root of 13670338 is about 239.1074369767.

Adding to 13670338 its reverse (83307631), we get a palindrome (96977969).

The spelling of 13670338 in words is "thirteen million, six hundred seventy thousand, three hundred thirty-eight".