12938238 has 16 divisors (see below), whose sum is σ = 28751760. Its totient is φ = 4312728.

The previous prime is 12938231. The next prime is 12938239. The reversal of 12938238 is 83283921.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12938231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119745 + ... + 119852.

It is an arithmetic number, because the mean of its divisors is an integer number (1796985).

Almost surely, 2^12938238 is an apocalyptic number.

12938238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12938238 is an abundant number, since it is smaller than the sum of its proper divisors (15813522).

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

12938238 is a wasteful number, since it uses less digits than its factorization.

12938238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239608 (or 239602 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 12938238 is about 3596.9762301133. The cubic root of 12938238 is about 234.7605105074.

The spelling of 12938238 in words is "twelve million, nine hundred thirty-eight thousand, two hundred thirty-eight".