2227998788 has 12 divisors (see below), whose sum is σ = 3925166700. Its totient is φ = 1106522592.

The previous prime is 2227998781. The next prime is 2227998793. The reversal of 2227998788 is 8878997222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1449477184 + 778521604 = 38072^2 + 27902^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2227998788.

It is not an unprimeable number, because it can be changed into a prime (2227998781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1868531 + ... + 1869722.

It is an arithmetic number, because the mean of its divisors is an integer number (327097225).

Almost surely, 2^2227998788 is an apocalyptic number.

It is an amenable number.

2227998788 is a deficient number, since it is larger than the sum of its proper divisors (1697167912).

2227998788 is a wasteful number, since it uses less digits than its factorization.

2227998788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738406 (or 3738404 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 62.

The square root of 2227998788 is about 47201.6820463000. The cubic root of 2227998788 is about 1306.0856265684.

The spelling of 2227998788 in words is "two billion, two hundred twenty-seven million, nine hundred ninety-eight thousand, seven hundred eighty-eight".