343680660 has 72 divisors (see below), whose sum is σ = 1044356040. Its totient is φ = 91484928.

The previous prime is 343680643. The next prime is 343680671. The reversal of 343680660 is 66086343.

It can be written as a sum of positive squares in 4 ways, for example, as 1726596 + 341954064 = 1314^2 + 18492^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 126274 + ... + 128966.

It is an arithmetic number, because the mean of its divisors is an integer number (14504945).

Almost surely, 2^343680660 is an apocalyptic number.

343680660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

343680660 is an abundant number, since it is smaller than the sum of its proper divisors (700675380).

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

343680660 is a wasteful number, since it uses less digits than its factorization.

343680660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3417 (or 3412 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 343680660 is about 18538.6261626907. The cubic root of 343680660 is about 700.4627280644.

The spelling of 343680660 in words is "three hundred forty-three million, six hundred eighty thousand, six hundred sixty".