8180380 has 48 divisors (see below), whose sum is σ = 18797184. Its totient is φ = 2972160.

The previous prime is 8180369. The next prime is 8180413. The reversal of 8180380 is 830818.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18765 + ... + 19195.

It is an arithmetic number, because the mean of its divisors is an integer number (391608).

Almost surely, 2^8180380 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 8180380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9398592).

8180380 is an abundant number, since it is smaller than the sum of its proper divisors (10616804).

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

8180380 is a wasteful number, since it uses less digits than its factorization.

8180380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 8180380 is about 2860.1363603856. The cubic root of 8180380 is about 201.4920085414.

The spelling of 8180380 in words is "eight million, one hundred eighty thousand, three hundred eighty".