36644860 has 96 divisors (see below), whose sum is σ = 94711680. Its totient is φ = 11624448.

The previous prime is 36644851. The next prime is 36644873. The reversal of 36644860 is 6844663.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211734 + ... + 211906.

It is an arithmetic number, because the mean of its divisors is an integer number (986580).

Almost surely, 2^36644860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36644860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47355840).

36644860 is an abundant number, since it is smaller than the sum of its proper divisors (58066820).

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

36644860 is a wasteful number, since it uses less digits than its factorization.

36644860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 36644860 is about 6053.4998141571. The cubic root of 36644860 is about 332.1526249433.

The spelling of 36644860 in words is "thirty-six million, six hundred forty-four thousand, eight hundred sixty".