109684520 has 64 divisors (see below), whose sum is σ = 271814400. Its totient is φ = 39502080.

The previous prime is 109684501. The next prime is 109684543. The reversal of 109684520 is 25486901.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46817 + ... + 49103.

It is an arithmetic number, because the mean of its divisors is an integer number (4247100).

Almost surely, 2^109684520 is an apocalyptic number.

109684520 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 109684520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135907200).

109684520 is an abundant number, since it is smaller than the sum of its proper divisors (162129880).

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

109684520 is a wasteful number, since it uses less digits than its factorization.

109684520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418 (or 2414 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 109684520 is about 10473.0377637054. The cubic root of 109684520 is about 478.6834873638.

The spelling of 109684520 in words is "one hundred nine million, six hundred eighty-four thousand, five hundred twenty".