346408818 has 32 divisors (see below), whose sum is σ = 817336320. Its totient is φ = 95780880.

The previous prime is 346408801. The next prime is 346408823. The reversal of 346408818 is 818804643.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 346408818.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131728 + ... + 134331.

It is an arithmetic number, because the mean of its divisors is an integer number (25541760).

Almost surely, 2^346408818 is an apocalyptic number.

346408818 is an abundant number, since it is smaller than the sum of its proper divisors (470927502).

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

346408818 is a wasteful number, since it uses less digits than its factorization.

346408818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266102.

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 346408818 is about 18612.0610895193. The cubic root of 346408818 is about 702.3112839339.

The spelling of 346408818 in words is "three hundred forty-six million, four hundred eight thousand, eight hundred eighteen".