13075638 has 32 divisors (see below), whose sum is σ = 27965952. Its totient is φ = 4065600.

The previous prime is 13075619. The next prime is 13075649. The reversal of 13075638 is 83657031.

It is a happy number.

13075638 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13075599 and 13075608.

It is a congruent 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, 4503 + ... + 6813.

It is an arithmetic number, because the mean of its divisors is an integer number (873936).

Almost surely, 2^13075638 is an apocalyptic number.

13075638 is an abundant number, since it is smaller than the sum of its proper divisors (14890314).

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

13075638 is a wasteful number, since it uses less digits than its factorization.

13075638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 13075638 is about 3616.0251658416. The cubic root of 13075638 is about 235.5886134761.

The spelling of 13075638 in words is "thirteen million, seventy-five thousand, six hundred thirty-eight".