36660220 has 24 divisors (see below), whose sum is σ = 77326704. Its totient is φ = 14599296.

The previous prime is 36660199. The next prime is 36660223. The reversal of 36660220 is 2206663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36660223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 727 + ... + 8593.

It is an arithmetic number, because the mean of its divisors is an integer number (3221946).

Almost surely, 2^36660220 is an apocalyptic number.

It is an amenable number.

36660220 is an abundant number, since it is smaller than the sum of its proper divisors (40666484).

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

36660220 is a wasteful number, since it uses less digits than its factorization.

36660220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8109 (or 8107 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 36660220 is about 6054.7683688148. The cubic root of 36660220 is about 332.1990266456.

Adding to 36660220 its reverse (2206663), we get a palindrome (38866883).

The spelling of 36660220 in words is "thirty-six million, six hundred sixty thousand, two hundred twenty".