14721238 has 16 divisors (see below), whose sum is σ = 26565120. Its totient is φ = 5976936.

The previous prime is 14721233. The next prime is 14721247. The reversal of 14721238 is 83212741.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14721233) 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, 27406 + ... + 27937.

It is an arithmetic number, because the mean of its divisors is an integer number (1660320).

Almost surely, 2^14721238 is an apocalyptic number.

14721238 is a deficient number, since it is larger than the sum of its proper divisors (11843882).

14721238 is a wasteful number, since it uses less digits than its factorization.

14721238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55371.

The product of its digits is 2688, while the sum is 28.

The square root of 14721238 is about 3836.8265532859. The cubic root of 14721238 is about 245.0838974089.

Adding to 14721238 its reverse (83212741), we get a palindrome (97933979).

The spelling of 14721238 in words is "fourteen million, seven hundred twenty-one thousand, two hundred thirty-eight".