44312402021 has 8 divisors (see below), whose sum is σ = 45151971480. Its totient is φ = 43472961792.

The previous prime is 44312402009. The next prime is 44312402033. The reversal of 44312402021 is 12020421344.

It is an interprime number because it is at equal distance from previous prime (44312402009) and next prime (44312402033).

It can be written as a sum of positive squares in 4 ways, for example, as 6787288225 + 37525113796 = 82385^2 + 193714^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44312402021 - 2¹⁰ = 44312400997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44314402021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926921 + ... + 973553.

It is an arithmetic number, because the mean of its divisors is an integer number (5643996435).

Almost surely, 2^44312402021 is an apocalyptic number.

It is an amenable number.

44312402021 is a deficient number, since it is larger than the sum of its proper divisors (839569459).

44312402021 is a wasteful number, since it uses less digits than its factorization.

44312402021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64615.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 44312402021 its reverse (12020421344), we get a palindrome (56332823365).

The spelling of 44312402021 in words is "forty-four billion, three hundred twelve million, four hundred two thousand, twenty-one".