16081236 has 36 divisors (see below), whose sum is σ = 41751892. Its totient is φ = 5215104.

The previous prime is 16081231. The next prime is 16081237. The reversal of 16081236 is 63218061.

16081236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6533136 + 9548100 = 2556^2 + 3090^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4705 + ... + 7368.

Almost surely, 2^16081236 is an apocalyptic number.

It is an amenable number.

16081236 is an abundant number, since it is smaller than the sum of its proper divisors (25670656).

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

16081236 is a wasteful number, since it uses less digits than its factorization.

16081236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12120 (or 12115 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 16081236 is about 4010.1416433837. The cubic root of 16081236 is about 252.4099525328.

Adding to 16081236 its reverse (63218061), we get a palindrome (79299297).

The spelling of 16081236 in words is "sixteen million, eighty-one thousand, two hundred thirty-six".