342749249 has 2 divisors, whose sum is σ = 342749250. Its totient is φ = 342749248.

The previous prime is 342749213. The next prime is 342749261. The reversal of 342749249 is 942947243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178089025 + 164660224 = 13345^2 + 12832^2 .

It is a cyclic number.

It is not a de Polignac number, because 342749249 - 2¹⁶ = 342683713 is a prime.

It is not a weakly prime, because it can be changed into another prime (342749269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171374624 + 171374625.

It is an arithmetic number, because the mean of its divisors is an integer number (171374625).

Almost surely, 2^342749249 is an apocalyptic number.

It is an amenable number.

342749249 is a deficient number, since it is larger than the sum of its proper divisors (1).

342749249 is an equidigital number, since it uses as much as digits as its factorization.

342749249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 44.

The square root of 342749249 is about 18513.4882990754. The cubic root of 342749249 is about 699.8293795042.

The spelling of 342749249 in words is "three hundred forty-two million, seven hundred forty-nine thousand, two hundred forty-nine".