109573220 has 36 divisors (see below), whose sum is σ = 237807612. Its totient is φ = 42408000.

The previous prime is 109573213. The next prime is 109573229. The reversal of 109573220 is 22375901.

It can be written as a sum of positive squares in 2 ways, for example, as 67996516 + 41576704 = 8246^2 + 6448^2 .

It is not an unprimeable number, because it can be changed into a prime (109573229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16370 + ... + 22070.

It is an arithmetic number, because the mean of its divisors is an integer number (6605767).

Almost surely, 2^109573220 is an apocalyptic number.

109573220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109573220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118903806).

109573220 is an abundant number, since it is smaller than the sum of its proper divisors (128234392).

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

109573220 is a wasteful number, since it uses less digits than its factorization.

109573220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5772 (or 5739 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 109573220 is about 10467.7227704979. The cubic root of 109573220 is about 478.5215213208.

The spelling of 109573220 in words is "one hundred nine million, five hundred seventy-three thousand, two hundred twenty".