44001021 has 8 divisors (see below), whose sum is σ = 58720000. Its totient is φ = 29308032.

The previous prime is 44001019. The next prime is 44001031. The reversal of 44001021 is 12010044.

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

It is not a de Polignac number, because 44001021 - 2¹ = 44001019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44000988 and 44001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44001031) 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, 2125 + ... + 9618.

It is an arithmetic number, because the mean of its divisors is an integer number (7340000).

Almost surely, 2^44001021 is an apocalyptic number.

It is an amenable number.

44001021 is a deficient number, since it is larger than the sum of its proper divisors (14718979).

44001021 is a wasteful number, since it uses less digits than its factorization.

44001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12995.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 44001021 is about 6633.3265410350. The cubic root of 44001021 is about 353.0375641824.

Adding to 44001021 its reverse (12010044), we get a palindrome (56011065).

The spelling of 44001021 in words is "forty-four million, one thousand, twenty-one".