16081238 has 8 divisors (see below), whose sum is σ = 24635232. Its totient is φ = 7869496.

The previous prime is 16081237. The next prime is 16081259. The reversal of 16081238 is 83218061.

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

It is a super-2 number, since 2×16081238² = 517212431225288, which contains 22 as substring.

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 16081238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16081231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85445 + ... + 85632.

It is an arithmetic number, because the mean of its divisors is an integer number (3079404).

Almost surely, 2^16081238 is an apocalyptic number.

16081238 is a deficient number, since it is larger than the sum of its proper divisors (8553994).

16081238 is a wasteful number, since it uses less digits than its factorization.

16081238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171126.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 16081238 is about 4010.1418927514. The cubic root of 16081238 is about 252.4099629967.

Adding to 16081238 its reverse (83218061), we get a palindrome (99299299).

The spelling of 16081238 in words is "sixteen million, eighty-one thousand, two hundred thirty-eight".