8369840 has 20 divisors (see below), whose sum is σ = 19460064. Its totient is φ = 3347904.

The previous prime is 8369833. The next prime is 8369849. The reversal of 8369840 is 489638.

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

It is a junction number, because it is equal to n+sod(n) for n = 8369794 and 8369803.

It is not an unprimeable number, because it can be changed into a prime (8369849) 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, 52232 + ... + 52391.

Almost surely, 2^8369840 is an apocalyptic number.

8369840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8369840 is an abundant number, since it is smaller than the sum of its proper divisors (11090224).

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

8369840 is a wasteful number, since it uses less digits than its factorization.

8369840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104636 (or 104630 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 8369840 is about 2893.0675761205. The cubic root of 8369840 is about 203.0356898107.

It can be divided in two parts, 83698 and 40, that added together give a palindrome (83738).

The spelling of 8369840 in words is "eight million, three hundred sixty-nine thousand, eight hundred forty".