349834057 has 2 divisors, whose sum is σ = 349834058. Its totient is φ = 349834056.

The previous prime is 349834049. The next prime is 349834081. The reversal of 349834057 is 750438943.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 281870521 + 67963536 = 16789^2 + 8244^2 .

It is a cyclic number.

It is not a de Polignac number, because 349834057 - 2³ = 349834049 is a prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (349834027) 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, 174917028 + 174917029.

It is an arithmetic number, because the mean of its divisors is an integer number (174917029).

Almost surely, 2^349834057 is an apocalyptic number.

It is an amenable number.

349834057 is a deficient number, since it is larger than the sum of its proper divisors (1).

349834057 is an equidigital number, since it uses as much as digits as its factorization.

349834057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 349834057 is about 18703.8513948331. The cubic root of 349834057 is about 704.6184794195.

The spelling of 349834057 in words is "three hundred forty-nine million, eight hundred thirty-four thousand, fifty-seven".