346655680 has 224 divisors, whose sum is σ = 997793280. Its totient is φ = 112250880.

The previous prime is 346655663. The next prime is 346655689. The reversal of 346655680 is 86556643.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346655689) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5682850 + ... + 5682910.

Almost surely, 2^346655680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 346655680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (498896640).

346655680 is an abundant number, since it is smaller than the sum of its proper divisors (651137600).

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

346655680 is a wasteful number, since it uses less digits than its factorization.

346655680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The square root of 346655680 is about 18618.6916833595. The cubic root of 346655680 is about 702.4780741459.

The spelling of 346655680 in words is "three hundred forty-six million, six hundred fifty-five thousand, six hundred eighty".