13063440 has 160 divisors (see below), whose sum is σ = 44997120. Its totient is φ = 3115008.

The previous prime is 13063439. The next prime is 13063483. The reversal of 13063440 is 4436031.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165321 + ... + 165399.

It is an arithmetic number, because the mean of its divisors is an integer number (281232).

Almost surely, 2^13063440 is an apocalyptic number.

13063440 is a gapful number since it is divisible by the number (10) 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 13063440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22498560).

13063440 is an abundant number, since it is smaller than the sum of its proper divisors (31933680).

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

13063440 is a wasteful number, since it uses less digits than its factorization.

13063440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 13063440 is about 3614.3381136800. The cubic root of 13063440 is about 235.5153320556.

Adding to 13063440 its reverse (4436031), we get a palindrome (17499471).

The spelling of 13063440 in words is "thirteen million, sixty-three thousand, four hundred forty".