1144040411 has 4 divisors (see below), whose sum is σ = 1144210824. Its totient is φ = 1143870000.

The previous prime is 1144040371. The next prime is 1144040419. The reversal of 1144040411 is 1140404411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1144040411 - 2¹⁰ = 1144039387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144040419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74705 + ... + 88706.

It is an arithmetic number, because the mean of its divisors is an integer number (286052706).

Almost surely, 2^1144040411 is an apocalyptic number.

1144040411 is a deficient number, since it is larger than the sum of its proper divisors (170413).

1144040411 is an equidigital number, since it uses as much as digits as its factorization.

1144040411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170412.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1144040411 is about 33823.6664334309. Note that the first 3 decimals coincide. The cubic root of 1144040411 is about 1045.8766210146.

Adding to 1144040411 its reverse (1140404411), we get a palindrome (2284444822).

The spelling of 1144040411 in words is "one billion, one hundred forty-four million, forty thousand, four hundred eleven".