349037918 has 4 divisors (see below), whose sum is σ = 523556880. Its totient is φ = 174518958.

The previous prime is 349037891. The next prime is 349037929. The reversal of 349037918 is 819730943.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 819730943 = 73 ⋅11229191.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87259478 + ... + 87259481.

It is an arithmetic number, because the mean of its divisors is an integer number (130889220).

Almost surely, 2^349037918 is an apocalyptic number.

349037918 is a deficient number, since it is larger than the sum of its proper divisors (174518962).

349037918 is a wasteful number, since it uses less digits than its factorization.

349037918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174518961.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 349037918 is about 18682.5565167083. The cubic root of 349037918 is about 704.0835588125.

The spelling of 349037918 in words is "three hundred forty-nine million, thirty-seven thousand, nine hundred eighteen".