2229443816 has 8 divisors (see below), whose sum is σ = 4180207170. Its totient is φ = 1114721904.

The previous prime is 2229443791. The next prime is 2229443837. The reversal of 2229443816 is 6183449222.

It can be written as a sum of positive squares in only one way, i.e., 2011881316 + 217562500 = 44854^2 + 14750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139340231 + ... + 139340246.

Almost surely, 2^2229443816 is an apocalyptic number.

It is an amenable number.

2229443816 is a deficient number, since it is larger than the sum of its proper divisors (1950763354).

2229443816 is a wasteful number, since it uses less digits than its factorization.

2229443816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278680483 (or 278680479 counting only the distinct ones).

The product of its digits is 165888, while the sum is 41.

The square root of 2229443816 is about 47216.9865196838. The cubic root of 2229443816 is about 1306.3679310939.

The spelling of 2229443816 in words is "two billion, two hundred twenty-nine million, four hundred forty-three thousand, eight hundred sixteen".