13667838 has 16 divisors (see below), whose sum is σ = 28217856. Its totient is φ = 4408920.

The previous prime is 13667827. The next prime is 13667861. The reversal of 13667838 is 83876631.

It is a self number, because there is not a number n which added to its sum of digits gives 13667838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36556 + ... + 36927.

It is an arithmetic number, because the mean of its divisors is an integer number (1763616).

Almost surely, 2^13667838 is an apocalyptic number.

13667838 is an abundant number, since it is smaller than the sum of its proper divisors (14550018).

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

13667838 is a wasteful number, since it uses less digits than its factorization.

13667838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73519.

The product of its digits is 145152, while the sum is 42.

The square root of 13667838 is about 3697.0039220969. The cubic root of 13667838 is about 239.0928602819.

The spelling of 13667838 in words is "thirteen million, six hundred sixty-seven thousand, eight hundred thirty-eight".