2154044224 has 28 divisors (see below), whose sum is σ = 4378691268. Its totient is φ = 1050752000.

The previous prime is 2154044203. The next prime is 2154044237. The reversal of 2154044224 is 4224404512.

It can be written as a sum of positive squares in 2 ways, for example, as 38044224 + 2116000000 = 6168^2 + 46000^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2154044192 and 2154044201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407827 + ... + 413074.

It is an arithmetic number, because the mean of its divisors is an integer number (156381831).

Almost surely, 2^2154044224 is an apocalyptic number.

It is an amenable number.

2154044224 is an abundant number, since it is smaller than the sum of its proper divisors (2224647044).

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

2154044224 is an equidigital number, since it uses as much as digits as its factorization.

2154044224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820954 (or 820944 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 2154044224 is about 46411.6819777090. The cubic root of 2154044224 is about 1291.4716342218.

Adding to 2154044224 its reverse (4224404512), we get a palindrome (6378448736).

The spelling of 2154044224 in words is "two billion, one hundred fifty-four million, forty-four thousand, two hundred twenty-four".