13042056 has 64 divisors (see below), whose sum is σ = 35294400. Its totient is φ = 4002048.

The previous prime is 13042033. The next prime is 13042069. The reversal of 13042056 is 65024031.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16486 + ... + 17258.

It is an arithmetic number, because the mean of its divisors is an integer number (551475).

Almost surely, 2^13042056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13042056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17647200).

13042056 is an abundant number, since it is smaller than the sum of its proper divisors (22252344).

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

13042056 is a wasteful number, since it uses less digits than its factorization.

13042056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 13042056 is about 3611.3786841039. The cubic root of 13042056 is about 235.3867541218.

Adding to 13042056 its reverse (65024031), we get a palindrome (78066087).

The spelling of 13042056 in words is "thirteen million, forty-two thousand, fifty-six".