109143468 has 144 divisors (see below), whose sum is σ = 339393600. Its totient is φ = 28864512.

The previous prime is 109143449. The next prime is 109143479. The reversal of 109143468 is 864341901.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 312558 + ... + 312906.

It is an arithmetic number, because the mean of its divisors is an integer number (2356900).

Almost surely, 2^109143468 is an apocalyptic number.

109143468 is a gapful number since it is divisible by the number (18) 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 109143468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169696800).

109143468 is an abundant number, since it is smaller than the sum of its proper divisors (230250132).

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

109143468 is a wasteful number, since it uses less digits than its factorization.

109143468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 109143468 is about 10447.1751205769. The cubic root of 109143468 is about 477.8951060369.

The spelling of 109143468 in words is "one hundred nine million, one hundred forty-three thousand, four hundred sixty-eight".