13948638 has 24 divisors (see below), whose sum is σ = 30665544. Its totient is φ = 4226640.

The previous prime is 13948637. The next prime is 13948643. The reversal of 13948638 is 83684931.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13948638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13948631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8881 + ... + 10332.

It is an arithmetic number, because the mean of its divisors is an integer number (1277731).

Almost surely, 2^13948638 is an apocalyptic number.

13948638 is an abundant number, since it is smaller than the sum of its proper divisors (16716906).

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

13948638 is a wasteful number, since it uses less digits than its factorization.

13948638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19240 (or 19229 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 13948638 is about 3734.7875441583. The cubic root of 13948638 is about 240.7191278001.

The spelling of 13948638 in words is "thirteen million, nine hundred forty-eight thousand, six hundred thirty-eight".