2144554412 has 96 divisors (see below), whose sum is σ = 5089803264. Its totient is φ = 763488000.

The previous prime is 2144554387. The next prime is 2144554417.

2144554412 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2144554412² = 9198227252057331488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2144554417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 401753 + ... + 407055.

It is an arithmetic number, because the mean of its divisors is an integer number (53018784).

Almost surely, 2^2144554412 is an apocalyptic number.

2144554412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2144554412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2544901632).

2144554412 is an abundant number, since it is smaller than the sum of its proper divisors (2945248852).

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

2144554412 is a wasteful number, since it uses less digits than its factorization.

2144554412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5439 (or 5437 counting only the distinct ones).

The product of its digits is 25600, while the sum is 32.

The square root of 2144554412 is about 46309.3339619563. Note that the first 3 decimals coincide. The cubic root of 2144554412 is about 1289.5722821326.

It can be divided in two parts, 21445 and 54412, that added together give a palindrome (75857).

The spelling of 2144554412 in words is "two billion, one hundred forty-four million, five hundred fifty-four thousand, four hundred twelve".