13923438 has 16 divisors (see below), whose sum is σ = 27952896. Its totient is φ = 4623480.

The previous prime is 13923431. The next prime is 13923439. The reversal of 13923438 is 83432931.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13923399 and 13923408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13923431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2656 + ... + 5907.

It is an arithmetic number, because the mean of its divisors is an integer number (1747056).

Almost surely, 2^13923438 is an apocalyptic number.

13923438 is an abundant number, since it is smaller than the sum of its proper divisors (14029458).

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

13923438 is a wasteful number, since it uses less digits than its factorization.

13923438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8839.

The product of its digits is 15552, while the sum is 33.

The square root of 13923438 is about 3731.4123331522. The cubic root of 13923438 is about 240.5740771085.

The spelling of 13923438 in words is "thirteen million, nine hundred twenty-three thousand, four hundred thirty-eight".