8118440 has 32 divisors (see below), whose sum is σ = 19928160. Its totient is φ = 2952000.

The previous prime is 8118433. The next prime is 8118493. The reversal of 8118440 is 448118.

It is a plaindrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8786 + ... + 9665.

It is an arithmetic number, because the mean of its divisors is an integer number (622755).

Almost surely, 2^8118440 is an apocalyptic number.

It is an amenable number.

8118440 is an abundant number, since it is smaller than the sum of its proper divisors (11809720).

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

8118440 is a wasteful number, since it uses less digits than its factorization.

8118440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18473 (or 18469 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 8118440 is about 2849.2876302683. The cubic root of 8118440 is about 200.9821688265.

It can be divided in two parts, 8118 and 440, that added together give a palindrome (8558).

The spelling of 8118440 in words is "eight million, one hundred eighteen thousand, four hundred forty".