8363140 has 12 divisors (see below), whose sum is σ = 17562636. Its totient is φ = 3345248.

The previous prime is 8363129. The next prime is 8363143. The reversal of 8363140 is 413638.

It can be written as a sum of positive squares in 2 ways, for example, as 6380676 + 1982464 = 2526^2 + 1408^2 .

It is a super-2 number, since 2×8363140² = 139884221319200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8363143) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 209059 + ... + 209098.

It is an arithmetic number, because the mean of its divisors is an integer number (1463553).

Almost surely, 2^8363140 is an apocalyptic number.

It is an amenable number.

8363140 is an abundant number, since it is smaller than the sum of its proper divisors (9199496).

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

8363140 is a wasteful number, since it uses less digits than its factorization.

8363140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418166 (or 418164 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 8363140 is about 2891.9094038368. The cubic root of 8363140 is about 202.9814991188.

Adding to 8363140 its reverse (413638), we get a palindrome (8776778).

The spelling of 8363140 in words is "eight million, three hundred sixty-three thousand, one hundred forty".