13485638 has 32 divisors (see below), whose sum is σ = 22044960. Its totient is φ = 6173440.

The previous prime is 13485623. The next prime is 13485671. The reversal of 13485638 is 83658431.

13485638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 125981 + ... + 126087.

It is an arithmetic number, because the mean of its divisors is an integer number (688905).

Almost surely, 2^13485638 is an apocalyptic number.

13485638 is a deficient number, since it is larger than the sum of its proper divisors (8559322).

13485638 is a wasteful number, since it uses less digits than its factorization.

13485638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232.

The product of its digits is 69120, while the sum is 38.

The square root of 13485638 is about 3672.2796734454. The cubic root of 13485638 is about 238.0256898569.

The spelling of 13485638 in words is "thirteen million, four hundred eighty-five thousand, six hundred thirty-eight".