16864238 has 8 divisors (see below), whose sum is σ = 26784432. Its totient is φ = 7936096.

The previous prime is 16864231. The next prime is 16864259. The reversal of 16864238 is 83246861.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16864231) 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, 247970 + ... + 248037.

It is an arithmetic number, because the mean of its divisors is an integer number (3348054).

Almost surely, 2^16864238 is an apocalyptic number.

16864238 is a deficient number, since it is larger than the sum of its proper divisors (9920194).

16864238 is a wasteful number, since it uses less digits than its factorization.

16864238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496026.

The product of its digits is 55296, while the sum is 38.

The square root of 16864238 is about 4106.6090634488. The cubic root of 16864238 is about 256.4418537063.

The spelling of 16864238 in words is "sixteen million, eight hundred sixty-four thousand, two hundred thirty-eight".