44420460421 has 4 divisors (see below), whose sum is σ = 44580823372. Its totient is φ = 44260097472.

The previous prime is 44420460379. The next prime is 44420460451. The reversal of 44420460421 is 12406402444.

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 5323307521 + 39097152900 = 72961^2 + 197730^2 .

It is a cyclic number.

It is not a de Polignac number, because 44420460421 - 2²⁹ = 43883589509 is a prime.

It is a super-3 number, since 3×44420460421³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44420460451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80181060 + ... + 80181613.

It is an arithmetic number, because the mean of its divisors is an integer number (11145205843).

Almost surely, 2^44420460421 is an apocalyptic number.

It is an amenable number.

44420460421 is a deficient number, since it is larger than the sum of its proper divisors (160362951).

44420460421 is a wasteful number, since it uses less digits than its factorization.

44420460421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160362950.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 44420460421 its reverse (12406402444), we get a palindrome (56826862865).

The spelling of 44420460421 in words is "forty-four billion, four hundred twenty million, four hundred sixty thousand, four hundred twenty-one".