13285908 has 54 divisors (see below), whose sum is σ = 35703486. Its totient is φ = 4164864.

The previous prime is 13285907. The next prime is 13285919. The reversal of 13285908 is 80958231.

It can be written as a sum of positive squares in 3 ways, for example, as 6411024 + 6874884 = 2532^2 + 2622^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13285903) 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 17 ways as a sum of consecutive naturals, for example, 9766 + ... + 11042.

Almost surely, 2^13285908 is an apocalyptic number.

13285908 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13285908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17851743).

13285908 is an abundant number, since it is smaller than the sum of its proper divisors (22417578).

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

13285908 is a wasteful number, since it uses less digits than its factorization.

13285908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321 (or 1299 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 13285908 is about 3644.9839505820. The cubic root of 13285908 is about 236.8447415535.

The spelling of 13285908 in words is "thirteen million, two hundred eighty-five thousand, nine hundred eight".