109475280 has 80 divisors (see below), whose sum is σ = 377088960. Its totient is φ = 29192832.

The previous prime is 109475243. The next prime is 109475281. The reversal of 109475280 is 82574901.

109475280 is a `hidden beast` number, since 109 + 475 + 2 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109475281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23182 + ... + 27501.

It is an arithmetic number, because the mean of its divisors is an integer number (4713612).

Almost surely, 2^109475280 is an apocalyptic number.

109475280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109475280 is an abundant number, since it is smaller than the sum of its proper divisors (267613680).

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

109475280 is a wasteful number, since it uses less digits than its factorization.

109475280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50705 (or 50693 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 109475280 is about 10463.0435342686. The cubic root of 109475280 is about 478.3789062783.

The spelling of 109475280 in words is "one hundred nine million, four hundred seventy-five thousand, two hundred eighty".