1441445321 has 4 divisors (see below), whose sum is σ = 1454669700. Its totient is φ = 1428220944.

The previous prime is 1441445267. The next prime is 1441445329. The reversal of 1441445321 is 1235441441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 422878096 + 1018567225 = 20564^2 + 31915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1441445321 is a prime.

It is a super-2 number, since 2×1441445321² = 4155529226865586082, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1441445329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6612026 + ... + 6612243.

It is an arithmetic number, because the mean of its divisors is an integer number (363667425).

Almost surely, 2^1441445321 is an apocalyptic number.

It is an amenable number.

1441445321 is a deficient number, since it is larger than the sum of its proper divisors (13224379).

1441445321 is a wasteful number, since it uses less digits than its factorization.

1441445321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13224378.

The product of its digits is 7680, while the sum is 29.

The square root of 1441445321 is about 37966.3709221727. The cubic root of 1441445321 is about 1129.6209136423.

Adding to 1441445321 its reverse (1235441441), we get a palindrome (2676886762).

The spelling of 1441445321 in words is "one billion, four hundred forty-one million, four hundred forty-five thousand, three hundred twenty-one".