8280381 has 8 divisors (see below), whose sum is σ = 11297440. Its totient is φ = 5391792.

The previous prime is 8280373. The next prime is 8280397. The reversal of 8280381 is 1830828.

8280381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8280381 - 2³ = 8280373 is a prime.

It is a super-2 number, since 2×8280381² = 137129419010322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8280331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31966 + ... + 32223.

It is an arithmetic number, because the mean of its divisors is an integer number (1412180).

Almost surely, 2^8280381 is an apocalyptic number.

It is an amenable number.

8280381 is a deficient number, since it is larger than the sum of its proper divisors (3017059).

8280381 is a wasteful number, since it uses less digits than its factorization.

8280381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64235.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 8280381 is about 2877.5651165525. The cubic root of 8280381 is about 202.3097313546.

The spelling of 8280381 in words is "eight million, two hundred eighty thousand, three hundred eighty-one".