342991680 has 56 divisors (see below), whose sum is σ = 1089001632. Its totient is φ = 91464192.

The previous prime is 342991669. The next prime is 342991681. The reversal of 342991680 is 86199243.

342991680 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342991681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177682 + ... + 179601.

Almost surely, 2^342991680 is an apocalyptic number.

342991680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

342991680 is an abundant number, since it is smaller than the sum of its proper divisors (746009952).

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

342991680 is a wasteful number, since it uses less digits than its factorization.

342991680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357303 (or 357293 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 342991680 is about 18520.0345572032. The cubic root of 342991680 is about 699.9943400903.

The spelling of 342991680 in words is "three hundred forty-two million, nine hundred ninety-one thousand, six hundred eighty".