109421268 has 72 divisors (see below), whose sum is σ = 282875040. Its totient is φ = 32894400.

The previous prime is 109421267. The next prime is 109421269. The reversal of 109421268 is 862124901.

It is an interprime number because it is at equal distance from previous prime (109421267) and next prime (109421269).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109421261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 259698 + ... + 260118.

It is an arithmetic number, because the mean of its divisors is an integer number (3928820).

Almost surely, 2^109421268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109421268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141437520).

109421268 is an abundant number, since it is smaller than the sum of its proper divisors (173453772).

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

109421268 is a wasteful number, since it uses less digits than its factorization.

109421268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 109421268 is about 10460.4621312827. The cubic root of 109421268 is about 478.3002204723.

The spelling of 109421268 in words is "one hundred nine million, four hundred twenty-one thousand, two hundred sixty-eight".