2144441628 has 60 divisors (see below), whose sum is σ = 6406857072. Its totient is φ = 612696960.

The previous prime is 2144441623. The next prime is 2144441633. The reversal of 2144441628 is 8261444412.

2144441628 is a `hidden beast` number, since 21 + 4 + 4 + 4 + 4 + 1 + 628 = 666.

It is an interprime number because it is at equal distance from previous prime (2144441623) and next prime (2144441633).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2144441592 and 2144441601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144441623) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 470493 + ... + 475028.

Almost surely, 2^2144441628 is an apocalyptic number.

2144441628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2144441628 is an abundant number, since it is smaller than the sum of its proper divisors (4262415444).

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

2144441628 is a wasteful number, since it uses less digits than its factorization.

2144441628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945544 (or 945533 counting only the distinct ones).

The product of its digits is 49152, while the sum is 36.

The square root of 2144441628 is about 46308.1162216733. The cubic root of 2144441628 is about 1289.5496751566.

The spelling of 2144441628 in words is "two billion, one hundred forty-four million, four hundred forty-one thousand, six hundred twenty-eight".