109723220 has 24 divisors (see below), whose sum is σ = 233860704. Its totient is φ = 43233696.

The previous prime is 109723213. The next prime is 109723223. The reversal of 109723220 is 22327901.

It is a self number, because there is not a number n which added to its sum of digits gives 109723220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109723223) 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 7 ways as a sum of consecutive naturals, for example, 39602 + ... + 42281.

It is an arithmetic number, because the mean of its divisors is an integer number (9744196).

Almost surely, 2^109723220 is an apocalyptic number.

109723220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109723220 is an abundant number, since it is smaller than the sum of its proper divisors (124137484).

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

109723220 is a wasteful number, since it uses less digits than its factorization.

109723220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81959 (or 81957 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 109723220 is about 10474.8852022349. The cubic root of 109723220 is about 478.7397787245.

The spelling of 109723220 in words is "one hundred nine million, seven hundred twenty-three thousand, two hundred twenty".