10440144021 has 16 divisors (see below), whose sum is σ = 14403977280. Its totient is φ = 6721841280.

The previous prime is 10440143993. The next prime is 10440144041. The reversal of 10440144021 is 12044104401.

It is not a de Polignac number, because 10440144021 - 2²² = 10435949717 is a prime.

It is a super-3 number, since 3×10440144021³ (a number of 31 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10440144041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443190 + ... + 466151.

It is an arithmetic number, because the mean of its divisors is an integer number (900248580).

Almost surely, 2^10440144021 is an apocalyptic number.

It is an amenable number.

10440144021 is a deficient number, since it is larger than the sum of its proper divisors (3963833259).

10440144021 is an equidigital number, since it uses as much as digits as its factorization.

10440144021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909476.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 10440144021 its reverse (12044104401), we get a palindrome (22484248422).

The spelling of 10440144021 in words is "ten billion, four hundred forty million, one hundred forty-four thousand, twenty-one".