1144389411 has 16 divisors (see below), whose sum is σ = 1849518720. Its totient is φ = 693569160.

The previous prime is 1144389353. The next prime is 1144389427. The reversal of 1144389411 is 1149834411.

It is not a de Polignac number, because 1144389411 - 2⁶ = 1144389347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144389481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1926285 + ... + 1926878.

It is an arithmetic number, because the mean of its divisors is an integer number (115594920).

Almost surely, 2^1144389411 is an apocalyptic number.

1144389411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1144389411 is a deficient number, since it is larger than the sum of its proper divisors (705129309).

1144389411 is a wasteful number, since it uses less digits than its factorization.

1144389411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3853183 (or 3853177 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 1144389411 is about 33828.8251495673. The cubic root of 1144389411 is about 1045.9829616144.

The spelling of 1144389411 in words is "one billion, one hundred forty-four million, three hundred eighty-nine thousand, four hundred eleven".