349540105 has 8 divisors (see below), whose sum is σ = 420086664. Its totient is φ = 279206400.

The previous prime is 349540063. The next prime is 349540109. The reversal of 349540105 is 501045943.

It can be written as a sum of positive squares in 4 ways, for example, as 7733961 + 341806144 = 2781^2 + 18488^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-349540105 is a prime.

It is a super-2 number, since 2×349540105² = 244356570006822050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349540109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49576 + ... + 56185.

It is an arithmetic number, because the mean of its divisors is an integer number (52510833).

Almost surely, 2^349540105 is an apocalyptic number.

It is an amenable number.

349540105 is a deficient number, since it is larger than the sum of its proper divisors (70546559).

349540105 is a wasteful number, since it uses less digits than its factorization.

349540105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106427.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 349540105 is about 18695.9916827110. The cubic root of 349540105 is about 704.4210695838.

The spelling of 349540105 in words is "three hundred forty-nine million, five hundred forty thousand, one hundred five".