818502972 has 48 divisors (see below), whose sum is σ = 2184779520. Its totient is φ = 233632512.

The previous prime is 818502953. The next prime is 818502977. The reversal of 818502972 is 279205818.

818502972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818502977) 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, 95604 + ... + 103812.

It is an arithmetic number, because the mean of its divisors is an integer number (45516240).

Almost surely, 2^818502972 is an apocalyptic number.

It is an amenable number.

818502972 is an abundant number, since it is smaller than the sum of its proper divisors (1366276548).

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

818502972 is a wasteful number, since it uses less digits than its factorization.

818502972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9410 (or 9408 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 818502972 is about 28609.4909426924. The cubic root of 818502972 is about 935.4202204254.

The spelling of 818502972 in words is "eight hundred eighteen million, five hundred two thousand, nine hundred seventy-two".