42340093 has 2 divisors, whose sum is σ = 42340094. Its totient is φ = 42340092.

The previous prime is 42340049. The next prime is 42340097. The reversal of 42340093 is 39004324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31337604 + 11002489 = 5598^2 + 3317^2 .

It is a cyclic number.

It is not a de Polignac number, because 42340093 - 2¹³ = 42331901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42340097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21170046 + 21170047.

It is an arithmetic number, because the mean of its divisors is an integer number (21170047).

Almost surely, 2^42340093 is an apocalyptic number.

It is an amenable number.

42340093 is a deficient number, since it is larger than the sum of its proper divisors (1).

42340093 is an equidigital number, since it uses as much as digits as its factorization.

42340093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 42340093 is about 6506.9265402339. The cubic root of 42340093 is about 348.5383753979.

The spelling of 42340093 in words is "forty-two million, three hundred forty thousand, ninety-three".