36981844 has 12 divisors (see below), whose sum is σ = 66950100. Its totient is φ = 17853248.

The previous prime is 36981827. The next prime is 36981887. The reversal of 36981844 is 44818963.

It can be written as a sum of positive squares in 2 ways, for example, as 24108100 + 12873744 = 4910^2 + 3588^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 36981844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159289 + ... + 159520.

It is an arithmetic number, because the mean of its divisors is an integer number (5579175).

Almost surely, 2^36981844 is an apocalyptic number.

It is an amenable number.

36981844 is a deficient number, since it is larger than the sum of its proper divisors (29968256).

36981844 is a wasteful number, since it uses less digits than its factorization.

36981844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318842 (or 318840 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 36981844 is about 6081.2699331636. The cubic root of 36981844 is about 333.1676719047.

The spelling of 36981844 in words is "thirty-six million, nine hundred eighty-one thousand, eight hundred forty-four".