44913421 has 4 divisors (see below), whose sum is σ = 51329632. Its totient is φ = 38497212.

The previous prime is 44913403. The next prime is 44913443. The reversal of 44913421 is 12431944.

44913421 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 44913421 - 2⁷ = 44913293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44913421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44913821) 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, 3208095 + ... + 3208108.

It is an arithmetic number, because the mean of its divisors is an integer number (12832408).

Almost surely, 2^44913421 is an apocalyptic number.

It is an amenable number.

44913421 is a deficient number, since it is larger than the sum of its proper divisors (6416211).

44913421 is an equidigital number, since it uses as much as digits as its factorization.

44913421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6416210.

The product of its digits is 3456, while the sum is 28.

The square root of 44913421 is about 6701.7476079005. The cubic root of 44913421 is about 355.4610712086.

The spelling of 44913421 in words is "forty-four million, nine hundred thirteen thousand, four hundred twenty-one".