13840136 has 16 divisors (see below), whose sum is σ = 26787840. Its totient is φ = 6696720.

The previous prime is 13840121. The next prime is 13840147. The reversal of 13840136 is 63104831.

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 in 3 ways as a sum of consecutive naturals, for example, 27656 + ... + 28151.

It is an arithmetic number, because the mean of its divisors is an integer number (1674240).

Almost surely, 2^13840136 is an apocalyptic number.

It is an amenable number.

13840136 is a deficient number, since it is larger than the sum of its proper divisors (12947704).

13840136 is a wasteful number, since it uses less digits than its factorization.

13840136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55844 (or 55840 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 13840136 is about 3720.2333260160. The cubic root of 13840136 is about 240.0933433209.

Adding to 13840136 its reverse (63104831), we get a palindrome (76944967).

The spelling of 13840136 in words is "thirteen million, eight hundred forty thousand, one hundred thirty-six".