346332820 has 24 divisors (see below), whose sum is σ = 735474600. Its totient is φ = 136975872.

The previous prime is 346332803. The next prime is 346332829. The reversal of 346332820 is 28233643.

346332820 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 55562116 + 290770704 = 7454^2 + 17052^2 .

346332820 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346332829) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 95505 + ... + 99064.

It is an arithmetic number, because the mean of its divisors is an integer number (30644775).

Almost surely, 2^346332820 is an apocalyptic number.

It is an amenable number.

346332820 is an abundant number, since it is smaller than the sum of its proper divisors (389141780).

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

346332820 is a wasteful number, since it uses less digits than its factorization.

346332820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194667 (or 194665 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 346332820 is about 18610.0193444284. The cubic root of 346332820 is about 702.2599205795.

The spelling of 346332820 in words is "three hundred forty-six million, three hundred thirty-two thousand, eight hundred twenty".