109029228 has 144 divisors (see below), whose sum is σ = 338913792. Its totient is φ = 26611200.

The previous prime is 109029187. The next prime is 109029229. The reversal of 109029228 is 822920901.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (109029229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 172473 + ... + 173103.

It is an arithmetic number, because the mean of its divisors is an integer number (2353568).

Almost surely, 2^109029228 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 109029228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169456896).

109029228 is an abundant number, since it is smaller than the sum of its proper divisors (229884564).

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

109029228 is a wasteful number, since it uses less digits than its factorization.

109029228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 109029228 is about 10441.7061824206. The cubic root of 109029228 is about 477.7283109093.

The spelling of 109029228 in words is "one hundred nine million, twenty-nine thousand, two hundred twenty-eight".