818362140 has 48 divisors (see below), whose sum is σ = 2293552800. Its totient is φ = 218026240.

The previous prime is 818362093. The next prime is 818362147. The reversal of 818362140 is 41263818.

818362140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818362147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65086 + ... + 76634.

It is an arithmetic number, because the mean of its divisors is an integer number (47782350).

Almost surely, 2^818362140 is an apocalyptic number.

It is an amenable number.

818362140 is an abundant number, since it is smaller than the sum of its proper divisors (1475190660).

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

818362140 is a wasteful number, since it uses less digits than its factorization.

818362140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12742 (or 12740 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 818362140 is about 28607.0295556879. The cubic root of 818362140 is about 935.3665677362.

The spelling of 818362140 in words is "eight hundred eighteen million, three hundred sixty-two thousand, one hundred forty".