1440340331001 has 32 divisors (see below), whose sum is σ = 2272666128768. Its totient is φ = 799903127040.

The previous prime is 1440340330963. The next prime is 1440340331009. The reversal of 1440340331001 is 1001330430441.

It is not a de Polignac number, because 1440340331001 - 2⁶ = 1440340330937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1440340331009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12194646 + ... + 12312191.

It is an arithmetic number, because the mean of its divisors is an integer number (71020816524).

Almost surely, 2^{1440340331001} is an apocalyptic number.

1440340331001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1440340331001 is a deficient number, since it is larger than the sum of its proper divisors (832325797767).

1440340331001 is a wasteful number, since it uses less digits than its factorization.

1440340331001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24507001.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1440340331001 its reverse (1001330430441), we get a palindrome (2441670761442).

The spelling of 1440340331001 in words is "one trillion, four hundred forty billion, three hundred forty million, three hundred thirty-one thousand, one".