1441732321 has 8 divisors (see below), whose sum is σ = 1454376960. Its totient is φ = 1429108128.

The previous prime is 1441732307. The next prime is 1441732333. The reversal of 1441732321 is 1232371441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1441732321 is a prime.

It is a super-4 number, since 4×1441732321⁴ (a number of 38 digits) contains 4444 as substring.

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 1441732321.

It is not an unprimeable number, because it can be changed into a prime (1441732351) 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, 159300 + ... + 168106.

It is an arithmetic number, because the mean of its divisors is an integer number (181797120).

Almost surely, 2^1441732321 is an apocalyptic number.

It is an amenable number.

1441732321 is a deficient number, since it is larger than the sum of its proper divisors (12644639).

1441732321 is a wasteful number, since it uses less digits than its factorization.

1441732321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10223.

The product of its digits is 4032, while the sum is 28.

The square root of 1441732321 is about 37970.1503947509. The cubic root of 1441732321 is about 1129.6958799933.

The spelling of 1441732321 in words is "one billion, four hundred forty-one million, seven hundred thirty-two thousand, three hundred twenty-one".