239409349 has 2 divisors, whose sum is σ = 239409350. Its totient is φ = 239409348.

The previous prime is 239409343. The next prime is 239409437. The reversal of 239409349 is 943904932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236944449 + 2464900 = 15393^2 + 1570^2 .

It is a cyclic number.

It is not a de Polignac number, because 239409349 - 2⁷ = 239409221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239409343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119704674 + 119704675.

It is an arithmetic number, because the mean of its divisors is an integer number (119704675).

Almost surely, 2^239409349 is an apocalyptic number.

It is an amenable number.

239409349 is a deficient number, since it is larger than the sum of its proper divisors (1).

239409349 is an equidigital number, since it uses as much as digits as its factorization.

239409349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 43.

The square root of 239409349 is about 15472.8584624820. The cubic root of 239409349 is about 620.9362796279.

The spelling of 239409349 in words is "two hundred thirty-nine million, four hundred nine thousand, three hundred forty-nine".