1144441320 has 64 divisors (see below), whose sum is σ = 3745448640. Its totient is φ = 277440000.

The previous prime is 1144441301. The next prime is 1144441351. The reversal of 1144441320 is 231444411.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 432181 + ... + 434820.

It is an arithmetic number, because the mean of its divisors is an integer number (58522635).

Almost surely, 2^1144441320 is an apocalyptic number.

1144441320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144441320 is an abundant number, since it is smaller than the sum of its proper divisors (2601007320).

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

1144441320 is a wasteful number, since it uses less digits than its factorization.

1144441320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867026 (or 867022 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1144441320 is about 33829.5923711770. The cubic root of 1144441320 is about 1045.9987764842.

Adding to 1144441320 its reverse (231444411), we get a palindrome (1375885731).

The spelling of 1144441320 in words is "one billion, one hundred forty-four million, four hundred forty-one thousand, three hundred twenty".