109028560 has 40 divisors (see below), whose sum is σ = 256356360. Its totient is φ = 43118592.

The previous prime is 109028539. The next prime is 109028561. The reversal of 109028560 is 65820901.

It can be written as a sum of positive squares in 4 ways, for example, as 5721664 + 103306896 = 2392^2 + 10164^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109028561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537 + ... + 14776.

It is an arithmetic number, because the mean of its divisors is an integer number (6408909).

Almost surely, 2^109028560 is an apocalyptic number.

109028560 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 109028560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128178180).

109028560 is an abundant number, since it is smaller than the sum of its proper divisors (147327800).

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

109028560 is a wasteful number, since it uses less digits than its factorization.

109028560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15415 (or 15409 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 109028560 is about 10441.6741952620. The cubic root of 109028560 is about 477.7273352591.

The spelling of 109028560 in words is "one hundred nine million, twenty-eight thousand, five hundred sixty".