44851421 has 2 divisors, whose sum is σ = 44851422. Its totient is φ = 44851420.

The previous prime is 44851397. The next prime is 44851427. The reversal of 44851421 is 12415844.

44851421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37039396 + 7812025 = 6086^2 + 2795^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44851421 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44851427) 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, 22425710 + 22425711.

It is an arithmetic number, because the mean of its divisors is an integer number (22425711).

Almost surely, 2^44851421 is an apocalyptic number.

It is an amenable number.

44851421 is a deficient number, since it is larger than the sum of its proper divisors (1).

44851421 is an equidigital number, since it uses as much as digits as its factorization.

44851421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5120, while the sum is 29.

The square root of 44851421 is about 6697.1203513152. The cubic root of 44851421 is about 355.2974324072.

The spelling of 44851421 in words is "forty-four million, eight hundred fifty-one thousand, four hundred twenty-one".