109170432 has 162 divisors, whose sum is σ = 366534168. Its totient is φ = 31159296.

The previous prime is 109170431. The next prime is 109170449. The reversal of 109170432 is 234071901.

It is a super-3 number, since 3×109170432³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 109170396 and 109170405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109170431) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 112413 + ... + 113379.

Almost surely, 2^109170432 is an apocalyptic number.

109170432 is a gapful number since it is divisible by the number (12) 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 109170432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183267084).

109170432 is an abundant number, since it is smaller than the sum of its proper divisors (257363736).

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

109170432 is an equidigital number, since it uses as much as digits as its factorization.

109170432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003 (or 979 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 109170432 is about 10448.4655332733. The cubic root of 109170432 is about 477.9344576135.

The spelling of 109170432 in words is "one hundred nine million, one hundred seventy thousand, four hundred thirty-two".