109361280 has 256 divisors, whose sum is σ = 407347200. Its totient is φ = 24440832.

The previous prime is 109361269. The next prime is 109361281. The reversal of 109361280 is 82163901.

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

It is not an unprimeable number, because it can be changed into a prime (109361281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1061709 + ... + 1061811.

It is an arithmetic number, because the mean of its divisors is an integer number (1591200).

Almost surely, 2^109361280 is an apocalyptic number.

109361280 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 109361280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203673600).

109361280 is an abundant number, since it is smaller than the sum of its proper divisors (297985920).

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

109361280 is a wasteful number, since it uses less digits than its factorization.

109361280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 109361280 is about 10457.5943696435. The cubic root of 109361280 is about 478.2127983496.

The spelling of 109361280 in words is "one hundred nine million, three hundred sixty-one thousand, two hundred eighty".