44020244421 has 32 divisors (see below), whose sum is σ = 65392886400. Its totient is φ = 29266997760.

The previous prime is 44020244417. The next prime is 44020244423. The reversal of 44020244421 is 12444202044.

It is not a de Polignac number, because 44020244421 - 2² = 44020244417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44020244423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21823605 + ... + 21825621.

It is an arithmetic number, because the mean of its divisors is an integer number (2043527700).

Almost surely, 2^44020244421 is an apocalyptic number.

It is an amenable number.

44020244421 is a deficient number, since it is larger than the sum of its proper divisors (21372641979).

44020244421 is a wasteful number, since it uses less digits than its factorization.

44020244421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3826 (or 3820 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 44020244421 its reverse (12444202044), we get a palindrome (56464446465).

The spelling of 44020244421 in words is "forty-four billion, twenty million, two hundred forty-four thousand, four hundred twenty-one".