109291488 has 96 divisors (see below), whose sum is σ = 305091360. Its totient is φ = 34191360.

The previous prime is 109291433. The next prime is 109291489. The reversal of 109291488 is 884192901.

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

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109291489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102478 + ... + 103538.

It is an arithmetic number, because the mean of its divisors is an integer number (3178035).

Almost surely, 2^109291488 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 109291488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152545680).

109291488 is an abundant number, since it is smaller than the sum of its proper divisors (195799872).

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

109291488 is a wasteful number, since it uses less digits than its factorization.

109291488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140 (or 1132 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 109291488 is about 10454.2569319871. The cubic root of 109291488 is about 478.1110483519. Note that the first 3 decimals are identical.

The spelling of 109291488 in words is "one hundred nine million, two hundred ninety-one thousand, four hundred eighty-eight".