36944181 has 20 divisors (see below), whose sum is σ = 56476992. Its totient is φ = 24054408.

The previous prime is 36944177. The next prime is 36944183. The reversal of 36944181 is 18144963.

It is not a de Polignac number, because 36944181 - 2² = 36944177 is a prime.

It is a super-2 number, since 2×36944181² = 2729745019521522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36944183) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1821 + ... + 8786.

Almost surely, 2^36944181 is an apocalyptic number.

It is an amenable number.

36944181 is a deficient number, since it is larger than the sum of its proper divisors (19532811).

36944181 is a wasteful number, since it uses less digits than its factorization.

36944181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10662 (or 10653 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 36944181 is about 6078.1725049557. The cubic root of 36944181 is about 333.0545320968.

It can be divided in two parts, 3694 and 4181, that added together give a triangular number (7875 = T₁₂₅).

The spelling of 36944181 in words is "thirty-six million, nine hundred forty-four thousand, one hundred eighty-one".