13972238 has 8 divisors (see below), whose sum is σ = 23952432. Its totient is φ = 5988096.

The previous prime is 13972237. The next prime is 13972243. The reversal of 13972238 is 83227931.

13972238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13972198 and 13972207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13972237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498995 + ... + 499022.

It is an arithmetic number, because the mean of its divisors is an integer number (2994054).

Almost surely, 2^13972238 is an apocalyptic number.

13972238 is a deficient number, since it is larger than the sum of its proper divisors (9980194).

13972238 is an equidigital number, since it uses as much as digits as its factorization.

13972238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998026.

The product of its digits is 18144, while the sum is 35.

The square root of 13972238 is about 3737.9456924894. The cubic root of 13972238 is about 240.8548105935.

The spelling of 13972238 in words is "thirteen million, nine hundred seventy-two thousand, two hundred thirty-eight".