8340980 has 48 divisors (see below), whose sum is σ = 18461520. Its totient is φ = 3161088.

The previous prime is 8340977. The next prime is 8340989. The reversal of 8340980 is 890438.

It can be written as a sum of positive squares in 8 ways, for example, as 712336 + 7628644 = 844^2 + 2762^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8340989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42242 + ... + 42438.

It is an arithmetic number, because the mean of its divisors is an integer number (384615).

Almost surely, 2^8340980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8340980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9230760).

8340980 is an abundant number, since it is smaller than the sum of its proper divisors (10120540).

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

8340980 is a wasteful number, since it uses less digits than its factorization.

8340980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 8340980 is about 2888.0754837781. The cubic root of 8340980 is about 202.8020589899.

The spelling of 8340980 in words is "eight million, three hundred forty thousand, nine hundred eighty".