1144430420 has 96 divisors (see below), whose sum is σ = 2908389120. Its totient is φ = 369515520.

The previous prime is 1144430407. The next prime is 1144430437. The reversal of 1144430420 is 240344411.

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 31 ways as a sum of consecutive naturals, for example, 480272 + ... + 482648.

It is an arithmetic number, because the mean of its divisors is an integer number (30295720).

Almost surely, 2^1144430420 is an apocalyptic number.

1144430420 is a gapful number since it is divisible by the number (10) 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 1144430420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1454194560).

1144430420 is an abundant number, since it is smaller than the sum of its proper divisors (1763958700).

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

1144430420 is a wasteful number, since it uses less digits than its factorization.

1144430420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2593 (or 2591 counting only the distinct ones).

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

The square root of 1144430420 is about 33829.4312692366. The cubic root of 1144430420 is about 1045.9954556723.

Adding to 1144430420 its reverse (240344411), we get a palindrome (1384774831).

The spelling of 1144430420 in words is "one billion, one hundred forty-four million, four hundred thirty thousand, four hundred twenty".