36138968 has 16 divisors (see below), whose sum is σ = 67830000. Its totient is φ = 18050976.

The previous prime is 36138961. The next prime is 36139001. The reversal of 36138968 is 86983163.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36138961) 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, 9578 + ... + 12806.

It is an arithmetic number, because the mean of its divisors is an integer number (4239375).

Almost surely, 2^36138968 is an apocalyptic number.

It is an amenable number.

36138968 is a deficient number, since it is larger than the sum of its proper divisors (31691032).

36138968 is a wasteful number, since it uses less digits than its factorization.

36138968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4634 (or 4630 counting only the distinct ones).

The product of its digits is 186624, while the sum is 44.

The square root of 36138968 is about 6011.5695121990. The cubic root of 36138968 is about 330.6170517896.

The spelling of 36138968 in words is "thirty-six million, one hundred thirty-eight thousand, nine hundred sixty-eight".