349270018 has 16 divisors (see below), whose sum is σ = 533146680. Its totient is φ = 171561600.

The previous prime is 349269983. The next prime is 349270057. The reversal of 349270018 is 810072943.

349270018 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 287065249 + 62204769 = 16943^2 + 7887^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156148 + ... + 158368.

Almost surely, 2^349270018 is an apocalyptic number.

349270018 is a deficient number, since it is larger than the sum of its proper divisors (183876662).

349270018 is a wasteful number, since it uses less digits than its factorization.

349270018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3573.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 349270018 is about 18688.7671610516. The cubic root of 349270018 is about 704.2395892190.

The spelling of 349270018 in words is "three hundred forty-nine million, two hundred seventy thousand, eighteen".