349342549 has 2 divisors, whose sum is σ = 349342550. Its totient is φ = 349342548.

The previous prime is 349342523. The next prime is 349342589. The reversal of 349342549 is 945243943.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 342916324 + 6426225 = 18518^2 + 2535^2 .

It is a cyclic number.

It is not a de Polignac number, because 349342549 - 2⁵ = 349342517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349342519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174671274 + 174671275.

It is an arithmetic number, because the mean of its divisors is an integer number (174671275).

Almost surely, 2^349342549 is an apocalyptic number.

It is an amenable number.

349342549 is a deficient number, since it is larger than the sum of its proper divisors (1).

349342549 is an equidigital number, since it uses as much as digits as its factorization.

349342549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 43.

The square root of 349342549 is about 18690.7075575003. The cubic root of 349342549 is about 704.2883343767.

The spelling of 349342549 in words is "three hundred forty-nine million, three hundred forty-two thousand, five hundred forty-nine".