13409236 has 12 divisors (see below), whose sum is σ = 24223360. Its totient is φ = 6488280.

The previous prime is 13409177. The next prime is 13409251. The reversal of 13409236 is 63290431.

It is a super-2 number, since 2×13409236² = 359615220207392, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53946 + ... + 54193.

Almost surely, 2^13409236 is an apocalyptic number.

It is an amenable number.

13409236 is a deficient number, since it is larger than the sum of its proper divisors (10814124).

13409236 is a wasteful number, since it uses less digits than its factorization.

13409236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108174 (or 108172 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 13409236 is about 3661.8623677031. The cubic root of 13409236 is about 237.5753319665.

Adding to 13409236 its reverse (63290431), we get a palindrome (76699667).

The spelling of 13409236 in words is "thirteen million, four hundred nine thousand, two hundred thirty-six".