42368399 has 2 divisors, whose sum is σ = 42368400. Its totient is φ = 42368398.

The previous prime is 42368393. The next prime is 42368407. The reversal of 42368399 is 99386324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42368399 - 2⁴ = 42368383 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 (42368393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21184199 + 21184200.

It is an arithmetic number, because the mean of its divisors is an integer number (21184200).

Almost surely, 2^42368399 is an apocalyptic number.

42368399 is a deficient number, since it is larger than the sum of its proper divisors (1).

42368399 is an equidigital number, since it uses as much as digits as its factorization.

42368399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 44.

The square root of 42368399 is about 6509.1012436434. The cubic root of 42368399 is about 348.6160285853.

The spelling of 42368399 in words is "forty-two million, three hundred sixty-eight thousand, three hundred ninety-nine".