44631021 has 4 divisors (see below), whose sum is σ = 59508032. Its totient is φ = 29754012.

The previous prime is 44631011. The next prime is 44631023. The reversal of 44631021 is 12013644.

44631021 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 not a de Polignac number, because 44631021 - 2⁷ = 44630893 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 (44631023) 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, 7438501 + ... + 7438506.

It is an arithmetic number, because the mean of its divisors is an integer number (14877008).

Almost surely, 2^44631021 is an apocalyptic number.

It is an amenable number.

44631021 is a deficient number, since it is larger than the sum of its proper divisors (14877011).

44631021 is a wasteful number, since it uses less digits than its factorization.

44631021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14877010.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 44631021 is about 6680.6452532671. The cubic root of 44631021 is about 354.7144990128.

Adding to 44631021 its reverse (12013644), we get a palindrome (56644665).

The spelling of 44631021 in words is "forty-four million, six hundred thirty-one thousand, twenty-one".