346212220 has 12 divisors (see below), whose sum is σ = 727045704. Its totient is φ = 138484880.

The previous prime is 346212193. The next prime is 346212227. The reversal of 346212220 is 22212643.

It is a junction number, because it is equal to n+sod(n) for n = 346212191 and 346212200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346212227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8655286 + ... + 8655325.

It is an arithmetic number, because the mean of its divisors is an integer number (60587142).

Almost surely, 2^346212220 is an apocalyptic number.

It is an amenable number.

346212220 is an abundant number, since it is smaller than the sum of its proper divisors (380833484).

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

346212220 is a wasteful number, since it uses less digits than its factorization.

346212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17310620 (or 17310618 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 346212220 is about 18606.7788722283. The cubic root of 346212220 is about 702.1783974761.

Adding to 346212220 its reverse (22212643), we get a palindrome (368424863).

The spelling of 346212220 in words is "three hundred forty-six million, two hundred twelve thousand, two hundred twenty".