818054412 has 72 divisors (see below), whose sum is σ = 2292111360. Its totient is φ = 226185120.

The previous prime is 818054351. The next prime is 818054437. The reversal of 818054412 is 214450818.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4212 + ... + 40667.

It is an arithmetic number, because the mean of its divisors is an integer number (31834880).

Almost surely, 2^818054412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 818054412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1146055680).

818054412 is an abundant number, since it is smaller than the sum of its proper divisors (1474056948).

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

818054412 is a wasteful number, since it uses less digits than its factorization.

818054412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44931 (or 44922 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 818054412 is about 28601.6505118149. The cubic root of 818054412 is about 935.2493113468.

The spelling of 818054412 in words is "eight hundred eighteen million, fifty-four thousand, four hundred twelve".