109319440 has 20 divisors (see below), whose sum is σ = 254167884. Its totient is φ = 43727744.

The previous prime is 109319429. The next prime is 109319447. The reversal of 109319440 is 44913901.

It can be written as a sum of positive squares in 2 ways, for example, as 78004224 + 31315216 = 8832^2 + 5596^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109319447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683167 + ... + 683326.

Almost surely, 2^109319440 is an apocalyptic number.

109319440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109319440 is an abundant number, since it is smaller than the sum of its proper divisors (144848444).

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

109319440 is a wasteful number, since it uses less digits than its factorization.

109319440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366506 (or 1366500 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 109319440 is about 10455.5937181970. The cubic root of 109319440 is about 478.1518048680.

The spelling of 109319440 in words is "one hundred nine million, three hundred nineteen thousand, four hundred forty".