44160421 has 2 divisors, whose sum is σ = 44160422. Its totient is φ = 44160420.

The previous prime is 44160419. The next prime is 44160433. The reversal of 44160421 is 12406144.

44160421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44076321 + 84100 = 6639^2 + 290^2 .

It is a cyclic number.

It is not a de Polignac number, because 44160421 - 2¹ = 44160419 is a prime.

Together with 44160419, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 44160392 and 44160401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44160451) 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 as a sum of consecutive naturals, namely, 22080210 + 22080211.

It is an arithmetic number, because the mean of its divisors is an integer number (22080211).

Almost surely, 2^44160421 is an apocalyptic number.

It is an amenable number.

44160421 is a deficient number, since it is larger than the sum of its proper divisors (1).

44160421 is an equidigital number, since it uses as much as digits as its factorization.

44160421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 44160421 is about 6645.3307667866. The cubic root of 44160421 is about 353.4633601384.

Adding to 44160421 its reverse (12406144), we get a palindrome (56566565).

The spelling of 44160421 in words is "forty-four million, one hundred sixty thousand, four hundred twenty-one".