44212457 has 2 divisors, whose sum is σ = 44212458. Its totient is φ = 44212456.

The previous prime is 44212453. The next prime is 44212459. The reversal of 44212457 is 75421244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35808256 + 8404201 = 5984^2 + 2899^2 .

It is a cyclic number.

It is not a de Polignac number, because 44212457 - 2² = 44212453 is a prime.

Together with 44212459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (44212451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22106228 + 22106229.

It is an arithmetic number, because the mean of its divisors is an integer number (22106229).

Almost surely, 2^44212457 is an apocalyptic number.

It is an amenable number.

44212457 is a deficient number, since it is larger than the sum of its proper divisors (1).

44212457 is an equidigital number, since it uses as much as digits as its factorization.

44212457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8960, while the sum is 29.

The square root of 44212457 is about 6649.2448443413. The cubic root of 44212457 is about 353.6021390070.

The spelling of 44212457 in words is "forty-four million, two hundred twelve thousand, four hundred fifty-seven".