2123444000 has 48 divisors (see below), whose sum is σ = 5217311736. Its totient is φ = 849376000.

The previous prime is 2123443999. The next prime is 2123444087. The reversal of 2123444000 is 4443212.

It can be written as a sum of positive squares in 4 ways, for example, as 283720336 + 1839723664 = 16844^2 + 42892^2 .

It is a super-2 number, since 2×2123444000² = 9018028842272000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261431 + ... + 269430.

Almost surely, 2^2123444000 is an apocalyptic number.

2123444000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123444000 is an abundant number, since it is smaller than the sum of its proper divisors (3093867736).

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

2123444000 is an equidigital number, since it uses as much as digits as its factorization.

2123444000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530886 (or 530868 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2123444000 is about 46080.8420061960. The cubic root of 2123444000 is about 1285.3269215182.

Adding to 2123444000 its reverse (4443212), we get a palindrome (2127887212).

The spelling of 2123444000 in words is "two billion, one hundred twenty-three million, four hundred forty-four thousand".