349555018 has 4 divisors (see below), whose sum is σ = 524332530. Its totient is φ = 174777508.

The previous prime is 349555001. The next prime is 349555061. The reversal of 349555018 is 810555943.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 348083649 + 1471369 = 18657^2 + 1213^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87388753 + ... + 87388756.

Almost surely, 2^349555018 is an apocalyptic number.

349555018 is a deficient number, since it is larger than the sum of its proper divisors (174777512).

349555018 is a wasteful number, since it uses less digits than its factorization.

349555018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174777511.

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 349555018 is about 18696.3905072610. The cubic root of 349555018 is about 704.4310873966.

The spelling of 349555018 in words is "three hundred forty-nine million, five hundred fifty-five thousand, eighteen".