13438935 has 24 divisors (see below), whose sum is σ = 23619024. Its totient is φ = 7067520.

The previous prime is 13438933. The next prime is 13438967. The reversal of 13438935 is 53983431.

It is not a de Polignac number, because 13438935 - 2¹ = 13438933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13438935.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13438933) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1240 + ... + 5330.

It is an arithmetic number, because the mean of its divisors is an integer number (984126).

Almost surely, 2^13438935 is an apocalyptic number.

13438935 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13438935 is a deficient number, since it is larger than the sum of its proper divisors (10180089).

13438935 is a wasteful number, since it uses less digits than its factorization.

13438935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4175 (or 4172 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 13438935 is about 3665.9153018039. The cubic root of 13438935 is about 237.7505979081.

The spelling of 13438935 in words is "thirteen million, four hundred thirty-eight thousand, nine hundred thirty-five".