2133444220 has 24 divisors (see below), whose sum is σ = 4484831904. Its totient is φ = 852501696.

The previous prime is 2133444191. The next prime is 2133444221. The reversal of 2133444220 is 224443312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133444221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34599 + ... + 73918.

It is an arithmetic number, because the mean of its divisors is an integer number (186867996).

Almost surely, 2^2133444220 is an apocalyptic number.

2133444220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2133444220 is an abundant number, since it is smaller than the sum of its proper divisors (2351387684).

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

2133444220 is a wasteful number, since it uses less digits than its factorization.

2133444220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109509 (or 109507 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 2133444220 is about 46189.2219029505. The cubic root of 2133444220 is about 1287.3414832335.

Adding to 2133444220 its reverse (224443312), we get a palindrome (2357887532).

The spelling of 2133444220 in words is "two billion, one hundred thirty-three million, four hundred forty-four thousand, two hundred twenty".