1144508379 has 16 divisors (see below), whose sum is σ = 1757749248. Its totient is φ = 648853632.

The previous prime is 1144508363. The next prime is 1144508401. The reversal of 1144508379 is 9738054411.

It is a happy number.

It is not a de Polignac number, because 1144508379 - 2⁴ = 1144508363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1144508379.

It is not an unprimeable number, because it can be changed into a prime (1144508329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211902 + ... + 217235.

It is an arithmetic number, because the mean of its divisors is an integer number (109859328).

Almost surely, 2^1144508379 is an apocalyptic number.

1144508379 is a deficient number, since it is larger than the sum of its proper divisors (613240869).

1144508379 is a wasteful number, since it uses less digits than its factorization.

1144508379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429274.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 1144508379 is about 33830.5834859525. The cubic root of 1144508379 is about 1046.0192063250.

The spelling of 1144508379 in words is "one billion, one hundred forty-four million, five hundred eight thousand, three hundred seventy-nine".