44643021 has 8 divisors (see below), whose sum is σ = 60070560. Its totient is φ = 29488752.

The previous prime is 44642953. The next prime is 44643041. The reversal of 44643021 is 12034644.

44643021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 44643021 - 2⁷ = 44642893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44642982 and 44643000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44643041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67935 + ... + 68588.

It is an arithmetic number, because the mean of its divisors is an integer number (7508820).

Almost surely, 2^44643021 is an apocalyptic number.

It is an amenable number.

44643021 is a deficient number, since it is larger than the sum of its proper divisors (15427539).

44643021 is a wasteful number, since it uses less digits than its factorization.

44643021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136635.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 44643021 is about 6681.5433097451. The cubic root of 44643021 is about 354.7462870118.

Adding to 44643021 its reverse (12034644), we get a palindrome (56677665).

The spelling of 44643021 in words is "forty-four million, six hundred forty-three thousand, twenty-one".