618806222 has 24 divisors (see below), whose sum is σ = 991695960. Its totient is φ = 289527680.

The previous prime is 618806213. The next prime is 618806233. The reversal of 618806222 is 222608816.

It is a super-2 number, since 2×618806222² = 765842280771826568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100472 + ... + 106452.

It is an arithmetic number, because the mean of its divisors is an integer number (41320665).

Almost surely, 2^618806222 is an apocalyptic number.

618806222 is a deficient number, since it is larger than the sum of its proper divisors (372889738).

618806222 is a wasteful number, since it uses less digits than its factorization.

618806222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6196 (or 6179 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 618806222 is about 24875.8160067162. The cubic root of 618806222 is about 852.1542688686.

The spelling of 618806222 in words is "six hundred eighteen million, eight hundred six thousand, two hundred twenty-two".