44910021 has 16 divisors (see below), whose sum is σ = 64834560. Its totient is φ = 27487680.

The previous prime is 44910001. The next prime is 44910029. The reversal of 44910021 is 12001944.

44910021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 44910021 - 2⁹ = 44909509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44910021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44910029) 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 15 ways as a sum of consecutive naturals, for example, 4435 + ... + 10463.

It is an arithmetic number, because the mean of its divisors is an integer number (4052160).

Almost surely, 2^44910021 is an apocalyptic number.

It is an amenable number.

44910021 is a deficient number, since it is larger than the sum of its proper divisors (19924539).

44910021 is a wasteful number, since it uses less digits than its factorization.

44910021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6236.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 44910021 is about 6701.4939379216. The cubic root of 44910021 is about 355.4521013720.

Adding to 44910021 its reverse (12001944), we get a palindrome (56911965).

The spelling of 44910021 in words is "forty-four million, nine hundred ten thousand, twenty-one".