36663220 has 48 divisors (see below), whose sum is σ = 88941888. Its totient is φ = 12546560.

The previous prime is 36663199. The next prime is 36663239. The reversal of 36663220 is 2236663.

36663220 = 1038² + 1039² + ... + 1070².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1162 + ... + 8641.

It is an arithmetic number, because the mean of its divisors is an integer number (1852956).

Almost surely, 2^36663220 is an apocalyptic number.

It is an amenable number.

36663220 is an abundant number, since it is smaller than the sum of its proper divisors (52278668).

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

36663220 is a wasteful number, since it uses less digits than its factorization.

36663220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9840 (or 9838 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 36663220 is about 6055.0161023733. The cubic root of 36663220 is about 332.2080879651.

Adding to 36663220 its reverse (2236663), we get a palindrome (38899883).

It can be divided in two parts, 3666 and 3220, that added together give a palindrome (6886).

The spelling of 36663220 in words is "thirty-six million, six hundred sixty-three thousand, two hundred twenty".