346354220 has 12 divisors (see below), whose sum is σ = 727343904. Its totient is φ = 138541680.

The previous prime is 346354213. The next prime is 346354237. The reversal of 346354220 is 22453643.

It is a super-2 number, since 2×346354220² = 239922491423616800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8658836 + ... + 8658875.

It is an arithmetic number, because the mean of its divisors is an integer number (60611992).

Almost surely, 2^346354220 is an apocalyptic number.

It is an amenable number.

346354220 is an abundant number, since it is smaller than the sum of its proper divisors (380989684).

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

346354220 is a wasteful number, since it uses less digits than its factorization.

346354220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17317720 (or 17317718 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 346354220 is about 18610.5942946484. The cubic root of 346354220 is about 702.2743845594.

The spelling of 346354220 in words is "three hundred forty-six million, three hundred fifty-four thousand, two hundred twenty".