109203822 has 128 divisors (see below), whose sum is σ = 303851520. Its totient is φ = 28304640.

The previous prime is 109203803. The next prime is 109203823. The reversal of 109203822 is 228302901.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109203823) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 348738 + ... + 349050.

It is an arithmetic number, because the mean of its divisors is an integer number (2373840).

Almost surely, 2^109203822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109203822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151925760).

109203822 is an abundant number, since it is smaller than the sum of its proper divisors (194647698).

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

109203822 is a wasteful number, since it uses less digits than its factorization.

109203822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 109203822 is about 10450.0632533971. The cubic root of 109203822 is about 477.9831783907.

The spelling of 109203822 in words is "one hundred nine million, two hundred three thousand, eight hundred twenty-two".