8240380 has 12 divisors (see below), whose sum is σ = 17304840. Its totient is φ = 3296144.

The previous prime is 8240363. The next prime is 8240383. The reversal of 8240380 is 830428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8240383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205990 + ... + 206029.

It is an arithmetic number, because the mean of its divisors is an integer number (1442070).

Almost surely, 2^8240380 is an apocalyptic number.

It is an amenable number.

8240380 is an abundant number, since it is smaller than the sum of its proper divisors (9064460).

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

8240380 is a wasteful number, since it uses less digits than its factorization.

8240380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412028 (or 412026 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 8240380 is about 2870.6062077547. The cubic root of 8240380 is about 201.9834316378.

The spelling of 8240380 in words is "eight million, two hundred forty thousand, three hundred eighty".