42444097 has 2 divisors, whose sum is σ = 42444098. Its totient is φ = 42444096.

The previous prime is 42444079. The next prime is 42444133. The reversal of 42444097 is 79044424.

Together with previous prime (42444079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41938576 + 505521 = 6476^2 + 711^2 .

It is a cyclic number.

It is not a de Polignac number, because 42444097 - 2⁷ = 42443969 is a prime.

It is not a weakly prime, because it can be changed into another prime (42444037) 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, 21222048 + 21222049.

It is an arithmetic number, because the mean of its divisors is an integer number (21222049).

Almost surely, 2^42444097 is an apocalyptic number.

It is an amenable number.

42444097 is a deficient number, since it is larger than the sum of its proper divisors (1).

42444097 is an equidigital number, since it uses as much as digits as its factorization.

42444097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 42444097 is about 6514.9134299697. The cubic root of 42444097 is about 348.8235247062.

It can be divided in two parts, 424 and 44097, that added together give a square (44521 = 211²).

The spelling of 42444097 in words is "forty-two million, four hundred forty-four thousand, ninety-seven".