1444041397 has 8 divisors (see below), whose sum is σ = 1473658200. Its totient is φ = 1414690560.

The previous prime is 1444041383. The next prime is 1444041409. The reversal of 1444041397 is 7931404441.

It can be written as a sum of positive squares in 4 ways, for example, as 77334436 + 1366706961 = 8794^2 + 36969^2 .

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 1444041397 - 2¹⁹ = 1443517109 is a prime.

It is a super-3 number, since 3×1444041397³ (a number of 28 digits) contains 333 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 (1444041317) 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, 55504 + ... + 77257.

It is an arithmetic number, because the mean of its divisors is an integer number (184207275).

Almost surely, 2^1444041397 is an apocalyptic number.

It is an amenable number.

1444041397 is a deficient number, since it is larger than the sum of its proper divisors (29616803).

1444041397 is a wasteful number, since it uses less digits than its factorization.

1444041397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132983.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 1444041397 is about 38000.5446934646. The cubic root of 1444041397 is about 1130.2986646262.

The spelling of 1444041397 in words is "one billion, four hundred forty-four million, forty-one thousand, three hundred ninety-seven".