109223940 has 144 divisors (see below), whose sum is σ = 360364032. Its totient is φ = 24643584.

The previous prime is 109223921. The next prime is 109223957. The reversal of 109223940 is 49322901.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 109223898 and 109223907.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 284989 + ... + 285371.

It is an arithmetic number, because the mean of its divisors is an integer number (2502528).

Almost surely, 2^109223940 is an apocalyptic number.

109223940 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 109223940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180182016).

109223940 is an abundant number, since it is smaller than the sum of its proper divisors (251140092).

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

109223940 is a wasteful number, since it uses less digits than its factorization.

109223940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 109223940 is about 10451.0257869742. The cubic root of 109223940 is about 478.0125286306.

The spelling of 109223940 in words is "one hundred nine million, two hundred twenty-three thousand, nine hundred forty".