13390636 has 24 divisors (see below), whose sum is σ = 27646976. Its totient is φ = 5553360.

The previous prime is 13390631. The next prime is 13390661. The reversal of 13390636 is 63609331.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 13390598 and 13390607.

It is not an unprimeable number, because it can be changed into a prime (13390631) 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 7 ways as a sum of consecutive naturals, for example, 6846 + ... + 8581.

Almost surely, 2^13390636 is an apocalyptic number.

It is an amenable number.

13390636 is an abundant number, since it is smaller than the sum of its proper divisors (14256340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13390636 is a wasteful number, since it uses less digits than its factorization.

13390636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15469 (or 15467 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 13390636 is about 3659.3217950872. The cubic root of 13390636 is about 237.4654339353.

Adding to 13390636 its reverse (63609331), we get a palindrome (76999967).

The spelling of 13390636 in words is "thirteen million, three hundred ninety thousand, six hundred thirty-six".