1144420411 has 4 divisors (see below), whose sum is σ = 1145125432. Its totient is φ = 1143715392.

The previous prime is 1144420339. The next prime is 1144420423. The reversal of 1144420411 is 1140244411.

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 1144420411 - 2⁷ = 1144420283 is a prime.

It is a super-2 number, since 2×1144420411² = 2619396154226817842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144420481) 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, 350070 + ... + 353323.

It is an arithmetic number, because the mean of its divisors is an integer number (286281358).

Almost surely, 2^1144420411 is an apocalyptic number.

1144420411 is a deficient number, since it is larger than the sum of its proper divisors (705021).

1144420411 is an equidigital number, since it uses as much as digits as its factorization.

1144420411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705020.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 1144420411 is about 33829.2833355955. The cubic root of 1144420411 is about 1045.9924062954.

Adding to 1144420411 its reverse (1140244411), we get a palindrome (2284664822).

The spelling of 1144420411 in words is "one billion, one hundred forty-four million, four hundred twenty thousand, four hundred eleven".