44536421 has 4 divisors (see below), whose sum is σ = 44586432. Its totient is φ = 44486412.

The previous prime is 44536417. The next prime is 44536423. The reversal of 44536421 is 12463544.

44536421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44536421 - 2² = 44536417 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 (44536423) 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 3 ways as a sum of consecutive naturals, for example, 23645 + ... + 25458.

It is an arithmetic number, because the mean of its divisors is an integer number (11146608).

Almost surely, 2^44536421 is an apocalyptic number.

It is an amenable number.

44536421 is a deficient number, since it is larger than the sum of its proper divisors (50011).

44536421 is an equidigital number, since it uses as much as digits as its factorization.

44536421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50010.

The product of its digits is 11520, while the sum is 29.

The square root of 44536421 is about 6673.5613430911. The cubic root of 44536421 is about 354.4637038837.

Adding to 44536421 its reverse (12463544), we get a palindrome (56999965).

The spelling of 44536421 in words is "forty-four million, five hundred thirty-six thousand, four hundred twenty-one".