42349 has 2 divisors, whose sum is σ = 42350. Its totient is φ = 42348.

The previous prime is 42337. The next prime is 42359. The reversal of 42349 is 94324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42025 + 324 = 205^2 + 18^2 .

It is a cyclic number.

It is not a de Polignac number, because 42349 - 2⁷ = 42221 is a prime.

It is a plaindrome in base 8.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21174 + 21175.

It is an arithmetic number, because the mean of its divisors is an integer number (21175).

2⁴²³⁴⁹ is an apocalyptic number.

It is an amenable number.

42349 is a deficient number, since it is larger than the sum of its proper divisors (1).

42349 is an equidigital number, since it uses as much as digits as its factorization.

42349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 22.

The square root of 42349 is about 205.7887266106. The cubic root of 42349 is about 34.8562814123.

The spelling of 42349 in words is "forty-two thousand, three hundred forty-nine".