346666680 has 48 divisors (see below), whose sum is σ = 1126667880. Its totient is φ = 92444352.

The previous prime is 346666679. The next prime is 346666717. The reversal of 346666680 is 86666643.

346666680 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 481122 + ... + 481841.

Almost surely, 2^346666680 is an apocalyptic number.

346666680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

346666680 is an abundant number, since it is smaller than the sum of its proper divisors (780001200).

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

346666680 is a wasteful number, since it uses less digits than its factorization.

346666680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962980 (or 962973 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The square root of 346666680 is about 18618.9870830827. The cubic root of 346666680 is about 702.4855043593.

The spelling of 346666680 in words is "three hundred forty-six million, six hundred sixty-six thousand, six hundred eighty".