109299840 has 256 divisors, whose sum is σ = 390700800. Its totient is φ = 25804800.

The previous prime is 109299823. The next prime is 109299871. The reversal of 109299840 is 48992901.

109299840 = T₂₉₅ + T₂₉₆ + ... + T₈₇₉.

It is a junction number, because it is equal to n+sod(n) for n = 109299792 and 109299801.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 723765 + ... + 723915.

It is an arithmetic number, because the mean of its divisors is an integer number (1526175).

Almost surely, 2^109299840 is an apocalyptic number.

109299840 is a gapful number since it is divisible by the number (10) 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 109299840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195350400).

109299840 is an abundant number, since it is smaller than the sum of its proper divisors (281400960).

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

109299840 is a wasteful number, since it uses less digits than its factorization.

109299840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 109299840 is about 10454.6563788582. The cubic root of 109299840 is about 478.1232270429.

The spelling of 109299840 in words is "one hundred nine million, two hundred ninety-nine thousand, eight hundred forty".