1144043420 has 24 divisors (see below), whose sum is σ = 2587298784. Its totient is φ = 422415936.

The previous prime is 1144043413. The next prime is 1144043431. The reversal of 1144043420 is 243404411.

It is a happy number.

It is a congruent number.

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, 2199824 + ... + 2200343.

It is an arithmetic number, because the mean of its divisors is an integer number (107804116).

Almost surely, 2^1144043420 is an apocalyptic number.

1144043420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144043420 is an abundant number, since it is smaller than the sum of its proper divisors (1443255364).

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

1144043420 is a wasteful number, since it uses less digits than its factorization.

1144043420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4400189 (or 4400187 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1144043420 is about 33823.7109140910. The cubic root of 1144043420 is about 1045.8775379519.

Adding to 1144043420 its reverse (243404411), we get a palindrome (1387447831).

The spelling of 1144043420 in words is "one billion, one hundred forty-four million, forty-three thousand, four hundred twenty".