36873640 has 16 divisors (see below), whose sum is σ = 82965780. Its totient is φ = 14749440.

The previous prime is 36873611. The next prime is 36873647. The reversal of 36873640 is 4637863.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36796356 + 77284 = 6066^2 + 278^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 36873640.

It is not an unprimeable number, because it can be changed into a prime (36873647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460881 + ... + 460960.

Almost surely, 2^36873640 is an apocalyptic number.

It is an amenable number.

36873640 is an abundant number, since it is smaller than the sum of its proper divisors (46092140).

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

36873640 is a wasteful number, since it uses less digits than its factorization.

36873640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921852 (or 921848 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 36873640 is about 6072.3669190852. The cubic root of 36873640 is about 332.8424195882.

The spelling of 36873640 in words is "thirty-six million, eight hundred seventy-three thousand, six hundred forty".