109955980 has 12 divisors (see below), whose sum is σ = 230907600. Its totient is φ = 43982384.

The previous prime is 109955959. The next prime is 109955987. The reversal of 109955980 is 89559901.

It is a self number, because there is not a number n which added to its sum of digits gives 109955980.

It is not an unprimeable number, because it can be changed into a prime (109955987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2748880 + ... + 2748919.

It is an arithmetic number, because the mean of its divisors is an integer number (19242300).

Almost surely, 2^109955980 is an apocalyptic number.

109955980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109955980 is an abundant number, since it is smaller than the sum of its proper divisors (120951620).

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

109955980 is a wasteful number, since it uses less digits than its factorization.

109955980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5497808 (or 5497806 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 46.

The square root of 109955980 is about 10485.9897005481. The cubic root of 109955980 is about 479.0780625416.

The spelling of 109955980 in words is "one hundred nine million, nine hundred fifty-five thousand, nine hundred eighty".