618441822 has 24 divisors (see below), whose sum is σ = 1340951976. Its totient is φ = 205994256.

The previous prime is 618441821. The next prime is 618441823. The reversal of 618441822 is 228144816.

618441822 is a `hidden beast` number, since 618 + 4 + 4 + 18 + 22 = 666.

It is an interprime number because it is at equal distance from previous prime (618441821) and next prime (618441823).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618441821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13648 + ... + 37724.

It is an arithmetic number, because the mean of its divisors is an integer number (55872999).

Almost surely, 2^618441822 is an apocalyptic number.

618441822 is an abundant number, since it is smaller than the sum of its proper divisors (722510154).

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

618441822 is a wasteful number, since it uses less digits than its factorization.

618441822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25512 (or 25509 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 618441822 is about 24868.4905452663. The cubic root of 618441822 is about 851.9869650191.

The spelling of 618441822 in words is "six hundred eighteen million, four hundred forty-one thousand, eight hundred twenty-two".