346408820 has 12 divisors (see below), whose sum is σ = 727458564. Its totient is φ = 138563520.

The previous prime is 346408801. The next prime is 346408823. The reversal of 346408820 is 28804643.

346408820 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 215443684 + 130965136 = 14678^2 + 11444^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346408823) 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, 8660201 + ... + 8660240.

It is an arithmetic number, because the mean of its divisors is an integer number (60621547).

Almost surely, 2^346408820 is an apocalyptic number.

It is an amenable number.

346408820 is an abundant number, since it is smaller than the sum of its proper divisors (381049744).

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

346408820 is a wasteful number, since it uses less digits than its factorization.

346408820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17320450 (or 17320448 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 346408820 is about 18612.0611432479. The cubic root of 346408820 is about 702.3112852855.

The spelling of 346408820 in words is "three hundred forty-six million, four hundred eight thousand, eight hundred twenty".