349417518 has 32 divisors (see below), whose sum is σ = 732416256. Its totient is φ = 110920128.

The previous prime is 349417511. The next prime is 349417547. The reversal of 349417518 is 815714943.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 349417518.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349417511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26721 + ... + 37587.

It is an arithmetic number, because the mean of its divisors is an integer number (22888008).

Almost surely, 2^349417518 is an apocalyptic number.

349417518 is an abundant number, since it is smaller than the sum of its proper divisors (382998738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

349417518 is a wasteful number, since it uses less digits than its factorization.

349417518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11128.

The product of its digits is 120960, while the sum is 42.

The square root of 349417518 is about 18692.7129652172. The cubic root of 349417518 is about 704.3387109252.

It can be divided in two parts, 3494 and 17518, that added together give a palindrome (21012).

The spelling of 349417518 in words is "three hundred forty-nine million, four hundred seventeen thousand, five hundred eighteen".