44020411021 has 4 divisors (see below), whose sum is σ = 44115900444. Its totient is φ = 43924921600.

The previous prime is 44020411013. The next prime is 44020411081. The reversal of 44020411021 is 12011402044.

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 32627196900 + 11393214121 = 180630^2 + 106739^2 .

It is a cyclic number.

It is not a de Polignac number, because 44020411021 - 2³ = 44020411013 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 44020411021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44020411081) 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, 47744020 + ... + 47744941.

It is an arithmetic number, because the mean of its divisors is an integer number (11028975111).

Almost surely, 2^44020411021 is an apocalyptic number.

It is an amenable number.

44020411021 is a deficient number, since it is larger than the sum of its proper divisors (95489423).

44020411021 is an equidigital number, since it uses as much as digits as its factorization.

44020411021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95489422.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 44020411021 its reverse (12011402044), we get a palindrome (56031813065).

The spelling of 44020411021 in words is "forty-four billion, twenty million, four hundred eleven thousand, twenty-one".