108267840 has 140 divisors (see below), whose sum is σ = 385219956. Its totient is φ = 28864512.

The previous prime is 108267791. The next prime is 108267857. The reversal of 108267840 is 48762801.

It can be written as a sum of positive squares in 2 ways, for example, as 73410624 + 34857216 = 8568^2 + 5904^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 108267795 and 108267804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23832 + ... + 28008.

Almost surely, 2^108267840 is an apocalyptic number.

108267840 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 108267840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192609978).

108267840 is an abundant number, since it is smaller than the sum of its proper divisors (276952116).

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

108267840 is an equidigital number, since it uses as much as digits as its factorization.

108267840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4206 (or 4187 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 108267840 is about 10405.1833237094. The cubic root of 108267840 is about 476.6136660606.

The spelling of 108267840 in words is "one hundred eight million, two hundred sixty-seven thousand, eight hundred forty".