36918220 has 48 divisors (see below), whose sum is σ = 85675968. Its totient is φ = 13291520.

The previous prime is 36918181. The next prime is 36918229. The reversal of 36918220 is 2281963.

36918220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (36918229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5460 + ... + 10180.

It is an arithmetic number, because the mean of its divisors is an integer number (1784916).

Almost surely, 2^36918220 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 36918220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42837984).

36918220 is an abundant number, since it is smaller than the sum of its proper divisors (48757748).

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

36918220 is a wasteful number, since it uses less digits than its factorization.

36918220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4770 (or 4768 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 36918220 is about 6076.0365370857. The cubic root of 36918220 is about 332.9765003692.

It can be divided in two parts, 3691 and 8220, that added together give a palindrome (11911).

The spelling of 36918220 in words is "thirty-six million, nine hundred eighteen thousand, two hundred twenty".