1144441020 has 48 divisors (see below), whose sum is σ = 3392934048. Its totient is φ = 287232000.

The previous prime is 1144441019. The next prime is 1144441027. The reversal of 1144441020 is 201444411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144441027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559981 + ... + 562020.

It is an arithmetic number, because the mean of its divisors is an integer number (70686126).

Almost surely, 2^1144441020 is an apocalyptic number.

1144441020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144441020 is an abundant number, since it is smaller than the sum of its proper divisors (2248493028).

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

1144441020 is a wasteful number, since it uses less digits than its factorization.

1144441020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122030 (or 1122028 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1144441020 is about 33829.5879371889. The cubic root of 1144441020 is about 1045.9986850860.

Adding to 1144441020 its reverse (201444411), we get a palindrome (1345885431).

The spelling of 1144441020 in words is "one billion, one hundred forty-four million, four hundred forty-one thousand, twenty".