2224521918 has 24 divisors (see below), whose sum is σ = 4950063768. Its totient is φ = 721466352.

The previous prime is 2224521917. The next prime is 2224521931. The reversal of 2224521918 is 8191254222.

2224521918 is a `hidden beast` number, since 22 + 24 + 521 + 91 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2224521911) 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, 1669396 + ... + 1670727.

It is an arithmetic number, because the mean of its divisors is an integer number (206252657).

Almost surely, 2^2224521918 is an apocalyptic number.

2224521918 is an abundant number, since it is smaller than the sum of its proper divisors (2725541850).

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

2224521918 is a wasteful number, since it uses less digits than its factorization.

2224521918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340168 (or 3340165 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 2224521918 is about 47164.8377289692. The cubic root of 2224521918 is about 1305.4058754268.

The spelling of 2224521918 in words is "two billion, two hundred twenty-four million, five hundred twenty-one thousand, nine hundred eighteen".