1401344443040 has 24 divisors (see below), whose sum is σ = 3310676247060. Its totient is φ = 560537777152.

The previous prime is 1401344443019. The next prime is 1401344443063. The reversal of 1401344443040 is 403444431041.

It can be written as a sum of positive squares in 2 ways, for example, as 1396433797264 + 4910645776 = 1181708^2 + 70076^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 1401344442988 and 1401344443006.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4379201225 + ... + 4379201544.

Almost surely, 2^{1401344443040} is an apocalyptic number.

1401344443040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401344443040 is an abundant number, since it is smaller than the sum of its proper divisors (1909331804020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1401344443040 is an equidigital number, since it uses as much as digits as its factorization.

1401344443040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8758402784 (or 8758402776 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 1401344443040 its reverse (403444431041), we get a palindrome (1804788874081).

The spelling of 1401344443040 in words is "one trillion, four hundred one billion, three hundred forty-four million, four hundred forty-three thousand, forty".