13669038 has 48 divisors (see below), whose sum is σ = 31258656. Its totient is φ = 4308480.

The previous prime is 13669013. The next prime is 13669039. The reversal of 13669038 is 83096631.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13668993 and 13669011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13669039) 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 23 ways as a sum of consecutive naturals, for example, 56598 + ... + 56838.

It is an arithmetic number, because the mean of its divisors is an integer number (651222).

Almost surely, 2^13669038 is an apocalyptic number.

13669038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13669038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15629328).

13669038 is an abundant number, since it is smaller than the sum of its proper divisors (17589618).

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

13669038 is a wasteful number, since it uses less digits than its factorization.

13669038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 13669038 is about 3697.1662121144. The cubic root of 13669038 is about 239.0998573172.

It can be divided in two parts, 1366 and 9038, that added together give a square (10404 = 102²).

The spelling of 13669038 in words is "thirteen million, six hundred sixty-nine thousand, thirty-eight".