1440141321 has 8 divisors (see below), whose sum is σ = 1920550720. Its totient is φ = 959913072.

The previous prime is 1440141319. The next prime is 1440141341. The reversal of 1440141321 is 1231410441.

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

It is not a de Polignac number, because 1440141321 - 2¹ = 1440141319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1440141341) 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, 25501 + ... + 59418.

It is an arithmetic number, because the mean of its divisors is an integer number (240068840).

Almost surely, 2^1440141321 is an apocalyptic number.

It is an amenable number.

1440141321 is a deficient number, since it is larger than the sum of its proper divisors (480409399).

1440141321 is an equidigital number, since it uses as much as digits as its factorization.

1440141321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90575.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1440141321 is about 37949.1939440089. The cubic root of 1440141321 is about 1129.2801746023.

Adding to 1440141321 its reverse (1231410441), we get a palindrome (2671551762).

The spelling of 1440141321 in words is "one billion, four hundred forty million, one hundred forty-one thousand, three hundred twenty-one".