109435860 has 120 divisors (see below), whose sum is σ = 351511776. Its totient is φ = 28486080.

The previous prime is 109435853. The next prime is 109435861. The reversal of 109435860 is 68534901.

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 (109435861) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 68875 + ... + 70445.

Almost surely, 2^109435860 is an apocalyptic number.

109435860 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 109435860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175755888).

109435860 is an abundant number, since it is smaller than the sum of its proper divisors (242075916).

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

109435860 is a wasteful number, since it uses less digits than its factorization.

109435860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635 (or 1624 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 109435860 is about 10461.1595915558. The cubic root of 109435860 is about 478.3214809540.

The spelling of 109435860 in words is "one hundred nine million, four hundred thirty-five thousand, eight hundred sixty".