42010393 has 2 divisors, whose sum is σ = 42010394. Its totient is φ = 42010392.

The previous prime is 42010391. The next prime is 42010411. The reversal of 42010393 is 39301024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24970009 + 17040384 = 4997^2 + 4128^2 .

It is a cyclic number.

It is not a de Polignac number, because 42010393 - 2¹ = 42010391 is a prime.

Together with 42010391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42010391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21005196 + 21005197.

It is an arithmetic number, because the mean of its divisors is an integer number (21005197).

Almost surely, 2^42010393 is an apocalyptic number.

It is an amenable number.

42010393 is a deficient number, since it is larger than the sum of its proper divisors (1).

42010393 is an equidigital number, since it uses as much as digits as its factorization.

42010393 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 42010393 is about 6481.5424861679. The cubic root of 42010393 is about 347.6313338263.

The spelling of 42010393 in words is "forty-two million, ten thousand, three hundred ninety-three".