1444163799 has 32 divisors (see below), whose sum is σ = 2253260800. Its totient is φ = 814769280.

The previous prime is 1444163789. The next prime is 1444163879. The reversal of 1444163799 is 9973614441.

It is not a de Polignac number, because 1444163799 - 2⁷ = 1444163671 is a prime.

It is a super-2 number, since 2×1444163799² = 4171218156684224802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444163789) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8464 + ... + 54405.

It is an arithmetic number, because the mean of its divisors is an integer number (70414400).

Almost surely, 2^1444163799 is an apocalyptic number.

1444163799 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1444163799 is a deficient number, since it is larger than the sum of its proper divisors (809097001).

1444163799 is a wasteful number, since it uses less digits than its factorization.

1444163799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62935.

The product of its digits is 653184, while the sum is 48.

The square root of 1444163799 is about 38002.1551888837. The cubic root of 1444163799 is about 1130.3305997467.

The spelling of 1444163799 in words is "one billion, four hundred forty-four million, one hundred sixty-three thousand, seven hundred ninety-nine".