109168992 has 96 divisors (see below), whose sum is σ = 329464800. Its totient is φ = 35126784.

The previous prime is 109168991. The next prime is 109169023. The reversal of 109168992 is 299861901.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109168991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22878 + ... + 27234.

It is an arithmetic number, because the mean of its divisors is an integer number (3431925).

Almost surely, 2^109168992 is an apocalyptic number.

109168992 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 109168992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164732400).

109168992 is an abundant number, since it is smaller than the sum of its proper divisors (220295808).

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

109168992 is a wasteful number, since it uses less digits than its factorization.

109168992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4405 (or 4391 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The square root of 109168992 is about 10448.3966234059. The cubic root of 109168992 is about 477.9323562245.

The spelling of 109168992 in words is "one hundred nine million, one hundred sixty-eight thousand, nine hundred ninety-two".