440132011021 has 4 divisors (see below), whose sum is σ = 440146028700. Its totient is φ = 440117993344.

The previous prime is 440132011019. The next prime is 440132011043. The reversal of 440132011021 is 120110231044.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 206219524996 + 233912486025 = 454114^2 + 483645^2 .

It is a cyclic number.

It is not a de Polignac number, because 440132011021 - 2¹ = 440132011019 is a prime.

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 440132011021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440132015021) 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 3 ways as a sum of consecutive naturals, for example, 6961636 + ... + 7024573.

It is an arithmetic number, because the mean of its divisors is an integer number (110036507175).

Almost surely, 2^440132011021 is an apocalyptic number.

It is an amenable number.

440132011021 is a deficient number, since it is larger than the sum of its proper divisors (14017679).

440132011021 is a wasteful number, since it uses less digits than its factorization.

440132011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14017678.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 440132011021 its reverse (120110231044), we get a palindrome (560242242065).

The spelling of 440132011021 in words is "four hundred forty billion, one hundred thirty-two million, eleven thousand, twenty-one".