818204442 has 16 divisors (see below), whose sum is σ = 1785173472. Its totient is φ = 247940720.

The previous prime is 818204423. The next prime is 818204477. The reversal of 818204442 is 244402818.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 6198453 + ... + 6198584.

It is an arithmetic number, because the mean of its divisors is an integer number (111573342).

Almost surely, 2^818204442 is an apocalyptic number.

818204442 is an abundant number, since it is smaller than the sum of its proper divisors (966969030).

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

818204442 is a wasteful number, since it uses less digits than its factorization.

818204442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12397053.

The product of its (nonzero) digits is 16384, while the sum is 33.

The square root of 818204442 is about 28604.2731423121. The cubic root of 818204442 is about 935.3064823105.

The spelling of 818204442 in words is "eight hundred eighteen million, two hundred four thousand, four hundred forty-two".