8102440 has 32 divisors (see below), whose sum is σ = 19025280. Its totient is φ = 3099712.

The previous prime is 8102431. The next prime is 8102441. The reversal of 8102440 is 442018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8102441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3484 + ... + 5323.

It is an arithmetic number, because the mean of its divisors is an integer number (594540).

Almost surely, 2^8102440 is an apocalyptic number.

It is an amenable number.

8102440 is an abundant number, since it is smaller than the sum of its proper divisors (10922840).

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

8102440 is a wasteful number, since it uses less digits than its factorization.

8102440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8841 (or 8837 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 8102440 is about 2846.4785261793. The cubic root of 8102440 is about 200.8500486347.

Adding to 8102440 its reverse (442018), we get a palindrome (8544458).

The spelling of 8102440 in words is "eight million, one hundred two thousand, four hundred forty".