109597440 has 72 divisors (see below), whose sum is σ = 350039088. Its totient is φ = 29224960.

The previous prime is 109597417. The next prime is 109597447. The reversal of 109597440 is 44795901.

It is not an unprimeable number, because it can be changed into a prime (109597447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10431 + ... + 18110.

It is an arithmetic number, because the mean of its divisors is an integer number (4861654).

Almost surely, 2^109597440 is an apocalyptic number.

109597440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109597440 is an abundant number, since it is smaller than the sum of its proper divisors (240441648).

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

109597440 is an equidigital number, since it uses as much as digits as its factorization.

109597440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28565 (or 28551 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 109597440 is about 10468.8795962128. The cubic root of 109597440 is about 478.5567760951.

The spelling of 109597440 in words is "one hundred nine million, five hundred ninety-seven thousand, four hundred forty".