42339001 has 2 divisors, whose sum is σ = 42339002. Its totient is φ = 42339000.

The previous prime is 42338999. The next prime is 42339007. The reversal of 42339001 is 10093324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41267776 + 1071225 = 6424^2 + 1035^2 .

It is a cyclic number.

It is not a de Polignac number, because 42339001 - 2¹ = 42338999 is a prime.

Together with 42338999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42339007) 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, 21169500 + 21169501.

It is an arithmetic number, because the mean of its divisors is an integer number (21169501).

Almost surely, 2^42339001 is an apocalyptic number.

It is an amenable number.

42339001 is a deficient number, since it is larger than the sum of its proper divisors (1).

42339001 is an equidigital number, since it uses as much as digits as its factorization.

42339001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 42339001 is about 6506.8426291098. The cubic root of 42339001 is about 348.5353789695.

The spelling of 42339001 in words is "forty-two million, three hundred thirty-nine thousand, one".