2244400128 has 66 divisors (see below), whose sum is σ = 6480683274. Its totient is φ = 748130304.

The previous prime is 2244400097. The next prime is 2244400139. The reversal of 2244400128 is 8210044422.

2244400128 is a `hidden beast` number, since 2 + 244 + 400 + 12 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2239939584 + 4460544 = 47328^2 + 2112^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112551 + ... + 130982.

Almost surely, 2^2244400128 is an apocalyptic number.

It is an amenable number.

2244400128 is an abundant number, since it is smaller than the sum of its proper divisors (4236283146).

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

2244400128 is a wasteful number, since it uses less digits than its factorization.

2244400128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243559 (or 243538 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

The square root of 2244400128 is about 47375.1002954083. The cubic root of 2244400128 is about 1309.2826964801.

The spelling of 2244400128 in words is "two billion, two hundred forty-four million, four hundred thousand, one hundred twenty-eight".