13406550 has 48 divisors (see below), whose sum is σ = 33539520. Its totient is φ = 3543840.

The previous prime is 13406531. The next prime is 13406579. The reversal of 13406550 is 5560431.

It is a self number, because there is not a number n which added to its sum of digits gives 13406550.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 20529 + ... + 21171.

It is an arithmetic number, because the mean of its divisors is an integer number (698740).

Almost surely, 2^13406550 is an apocalyptic number.

13406550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13406550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16769760).

13406550 is an abundant number, since it is smaller than the sum of its proper divisors (20132970).

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

13406550 is a wasteful number, since it uses less digits than its factorization.

13406550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 13406550 is about 3661.4955960645. The cubic root of 13406550 is about 237.5594680263.

Adding to 13406550 its reverse (5560431), we get a palindrome (18966981).

The spelling of 13406550 in words is "thirteen million, four hundred six thousand, five hundred fifty".