818499040 has 24 divisors (see below), whose sum is σ = 1933704360. Its totient is φ = 327399552.

The previous prime is 818499029. The next prime is 818499041. The reversal of 818499040 is 40994818.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818499041) 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, 2557650 + ... + 2557969.

It is an arithmetic number, because the mean of its divisors is an integer number (80571015).

Almost surely, 2^818499040 is an apocalyptic number.

818499040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

818499040 is an abundant number, since it is smaller than the sum of its proper divisors (1115205320).

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

818499040 is a wasteful number, since it uses less digits than its factorization.

818499040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5115634 (or 5115626 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 818499040 is about 28609.4222241555. The cubic root of 818499040 is about 935.4187225371.

The spelling of 818499040 in words is "eight hundred eighteen million, four hundred ninety-nine thousand, forty".