1444434121 has 8 divisors (see below), whose sum is σ = 1647047304. Its totient is φ = 1254892800.

The previous prime is 1444434091. The next prime is 1444434149. The reversal of 1444434121 is 1214344441.

It can be written as a sum of positive squares in 4 ways, for example, as 367872400 + 1076561721 = 19180^2 + 32811^2 .

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 1444434121 - 2²⁷ = 1310216393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1444434121.

It is not an unprimeable number, because it can be changed into a prime (1444434151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3267730 + ... + 3268171.

It is an arithmetic number, because the mean of its divisors is an integer number (205880913).

Almost surely, 2^1444434121 is an apocalyptic number.

It is an amenable number.

1444434121 is a deficient number, since it is larger than the sum of its proper divisors (202613183).

1444434121 is a wasteful number, since it uses less digits than its factorization.

1444434121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6535931.

The product of its digits is 6144, while the sum is 28.

The square root of 1444434121 is about 38005.7116891659. The cubic root of 1444434121 is about 1130.4011213330.

Adding to 1444434121 its reverse (1214344441), we get a palindrome (2658778562).

The spelling of 1444434121 in words is "one billion, four hundred forty-four million, four hundred thirty-four thousand, one hundred twenty-one".