13660122 has 48 divisors (see below), whose sum is σ = 32175360. Its totient is φ = 3854592.

The previous prime is 13660117. The next prime is 13660123. The reversal of 13660122 is 22106631.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13660123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28279 + ... + 28757.

It is an arithmetic number, because the mean of its divisors is an integer number (670320).

Almost surely, 2^13660122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13660122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16087680).

13660122 is an abundant number, since it is smaller than the sum of its proper divisors (18515238).

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

13660122 is a wasteful number, since it uses less digits than its factorization.

13660122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 13660122 is about 3695.9602270587. The cubic root of 13660122 is about 239.0478595588.

Adding to 13660122 its reverse (22106631), we get a palindrome (35766753).

The spelling of 13660122 in words is "thirteen million, six hundred sixty thousand, one hundred twenty-two".