36109220 has 48 divisors (see below), whose sum is σ = 87588480. Its totient is φ = 12248064.

The previous prime is 36109219. The next prime is 36109223. The reversal of 36109220 is 2290163.

It is not an unprimeable number, because it can be changed into a prime (36109223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12251 + ... + 14909.

It is an arithmetic number, because the mean of its divisors is an integer number (1824760).

Almost surely, 2^36109220 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 36109220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43794240).

36109220 is an abundant number, since it is smaller than the sum of its proper divisors (51479260).

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

36109220 is a wasteful number, since it uses less digits than its factorization.

36109220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2772 (or 2770 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 36109220 is about 6009.0947737575. The cubic root of 36109220 is about 330.5263104425.

Adding to 36109220 its reverse (2290163), we get a palindrome (38399383).

The spelling of 36109220 in words is "thirty-six million, one hundred nine thousand, two hundred twenty".