109694880 has 144 divisors (see below), whose sum is σ = 396441864. Its totient is φ = 27525120.

The previous prime is 109694873. The next prime is 109694881. The reversal of 109694880 is 88496901.

109694880 is a `hidden beast` number, since 109 + 69 + 488 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 106750224 + 2944656 = 10332^2 + 1716^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (109694881) 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 23 ways as a sum of consecutive naturals, for example, 22240 + ... + 26720.

Almost surely, 2^109694880 is an apocalyptic number.

109694880 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 109694880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198220932).

109694880 is an abundant number, since it is smaller than the sum of its proper divisors (286746984).

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

109694880 is a wasteful number, since it uses less digits than its factorization.

109694880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4519 (or 4508 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 109694880 is about 10473.5323554186. The cubic root of 109694880 is about 478.6985578733.

The spelling of 109694880 in words is "one hundred nine million, six hundred ninety-four thousand, eight hundred eighty".