2118074220 has 72 divisors (see below), whose sum is σ = 6574263696. Its totient is φ = 551682432.

The previous prime is 2118074197. The next prime is 2118074221. The reversal of 2118074220 is 224708112.

It is not an unprimeable number, because it can be changed into a prime (2118074221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129087 + ... + 144566.

It is an arithmetic number, because the mean of its divisors is an integer number (91309218).

Almost surely, 2^2118074220 is an apocalyptic number.

2118074220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2118074220 is an abundant number, since it is smaller than the sum of its proper divisors (4456189476).

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

2118074220 is a wasteful number, since it uses less digits than its factorization.

2118074220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273711 (or 273706 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 2118074220 is about 46022.5403470951. The cubic root of 2118074220 is about 1284.2425590610.

The spelling of 2118074220 in words is "two billion, one hundred eighteen million, seventy-four thousand, two hundred twenty".