13636140 has 48 divisors (see below), whose sum is σ = 43636992. Its totient is φ = 3116736.

The previous prime is 13636127. The next prime is 13636141. The reversal of 13636140 is 4163631.

It is a self number, because there is not a number n which added to its sum of digits gives 13636140.

It is not an unprimeable number, because it can be changed into a prime (13636141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15814 + ... + 16653.

It is an arithmetic number, because the mean of its divisors is an integer number (909104).

Almost surely, 2^13636140 is an apocalyptic number.

13636140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13636140 is an abundant number, since it is smaller than the sum of its proper divisors (30000852).

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

13636140 is a wasteful number, since it uses less digits than its factorization.

13636140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32486 (or 32484 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 13636140 is about 3692.7144487490. The cubic root of 13636140 is about 238.9078851148.

Adding to 13636140 its reverse (4163631), we get a palindrome (17799771).

It can be divided in two parts, 1363 and 6140, that added together give a triangular number (7503 = T₁₂₂).

The spelling of 13636140 in words is "thirteen million, six hundred thirty-six thousand, one hundred forty".