1144660417 has 8 divisors (see below), whose sum is σ = 1159465320. Its totient is φ = 1129898880.

The previous prime is 1144660411. The next prime is 1144660459. The reversal of 1144660417 is 7140664411.

It can be written as a sum of positive squares in 4 ways, for example, as 20466576 + 1124193841 = 4524^2 + 33529^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1144660417 - 2³ = 1144660409 is a prime.

It is a super-2 number, since 2×1144660417² = 2620494940493227778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144660411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44067 + ... + 65047.

It is an arithmetic number, because the mean of its divisors is an integer number (144933165).

Almost surely, 2^1144660417 is an apocalyptic number.

It is an amenable number.

1144660417 is a deficient number, since it is larger than the sum of its proper divisors (14804903).

1144660417 is an equidigital number, since it uses as much as digits as its factorization.

1144660417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21683.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 1144660417 is about 33832.8304609591. The cubic root of 1144660417 is about 1046.0655224637.

The spelling of 1144660417 in words is "one billion, one hundred forty-four million, six hundred sixty thousand, four hundred seventeen".