349859401 has 2 divisors, whose sum is σ = 349859402. Its totient is φ = 349859400.

The previous prime is 349859357. The next prime is 349859429. The reversal of 349859401 is 104958943.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 239630400 + 110229001 = 15480^2 + 10499^2 .

It is a cyclic number.

It is not a de Polignac number, because 349859401 - 2¹⁹ = 349335113 is a prime.

It is not a weakly prime, because it can be changed into another prime (349859431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174929700 + 174929701.

It is an arithmetic number, because the mean of its divisors is an integer number (174929701).

Almost surely, 2^349859401 is an apocalyptic number.

It is an amenable number.

349859401 is a deficient number, since it is larger than the sum of its proper divisors (1).

349859401 is an equidigital number, since it uses as much as digits as its factorization.

349859401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 349859401 is about 18704.5288900843. The cubic root of 349859401 is about 704.6354945530.

The spelling of 349859401 in words is "three hundred forty-nine million, eight hundred fifty-nine thousand, four hundred one".