36181604 has 12 divisors (see below), whose sum is σ = 63459564. Its totient is φ = 18050304.

The previous prime is 36181603. The next prime is 36181657. The reversal of 36181604 is 40618163.

It can be written as a sum of positive squares in 2 ways, for example, as 30228004 + 5953600 = 5498^2 + 2440^2 .

It is not an unprimeable number, because it can be changed into a prime (36181603) 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, 8069 + ... + 11724.

It is an arithmetic number, because the mean of its divisors is an integer number (5288297).

Almost surely, 2^36181604 is an apocalyptic number.

It is an amenable number.

36181604 is a deficient number, since it is larger than the sum of its proper divisors (27277960).

36181604 is a wasteful number, since it uses less digits than its factorization.

36181604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20254 (or 20252 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 36181604 is about 6015.1146289992. The cubic root of 36181604 is about 330.7470190574.

Adding to 36181604 its reverse (40618163), we get a palindrome (76799767).

The spelling of 36181604 in words is "thirty-six million, one hundred eighty-one thousand, six hundred four".