109680444 has 36 divisors (see below), whose sum is σ = 283699416. Its totient is φ = 35709408.

The previous prime is 109680437. The next prime is 109680463. The reversal of 109680444 is 444086901.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 109680399 and 109680408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33879 + ... + 36974.

Almost surely, 2^109680444 is an apocalyptic number.

It is an amenable number.

109680444 is an abundant number, since it is smaller than the sum of its proper divisors (174018972).

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

109680444 is a wasteful number, since it uses less digits than its factorization.

109680444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70906 (or 70901 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 109680444 is about 10472.8431669724. The cubic root of 109680444 is about 478.6775578182.

The spelling of 109680444 in words is "one hundred nine million, six hundred eighty thousand, four hundred forty-four".