13489776 has 60 divisors (see below), whose sum is σ = 39403728. Its totient is φ = 4300032.

The previous prime is 13489769. The next prime is 13489781. The reversal of 13489776 is 67798431.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1276 + ... + 5348.

Almost surely, 2^13489776 is an apocalyptic number.

13489776 is a gapful number since it is divisible by the number (16) 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 13489776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19701864).

13489776 is an abundant number, since it is smaller than the sum of its proper divisors (25913952).

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

13489776 is a wasteful number, since it uses less digits than its factorization.

13489776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4110 (or 4101 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 13489776 is about 3672.8430404797. The cubic root of 13489776 is about 238.0500330280.

The spelling of 13489776 in words is "thirteen million, four hundred eighty-nine thousand, seven hundred seventy-six".