109028280 has 64 divisors (see below), whose sum is σ = 341314560. Its totient is φ = 27809408.

The previous prime is 109028279. The next prime is 109028321. The reversal of 109028280 is 82820901.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16992 + ... + 22511.

It is an arithmetic number, because the mean of its divisors is an integer number (5333040).

Almost surely, 2^109028280 is an apocalyptic number.

109028280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109028280 is an abundant number, since it is smaller than the sum of its proper divisors (232286280).

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

109028280 is a wasteful number, since it uses less digits than its factorization.

109028280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39540 (or 39536 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 109028280 is about 10441.6607874418. The cubic root of 109028280 is about 477.7269263027.

The spelling of 109028280 in words is "one hundred nine million, twenty-eight thousand, two hundred eighty".