680206142 has 48 divisors (see below), whose sum is σ = 1370990448. Its totient is φ = 249419520.

The previous prime is 680206067. The next prime is 680206151. The reversal of 680206142 is 241602086.

It is a super-2 number, since 2×680206142² = 925360791229048328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 233 + ... + 36884.

It is an arithmetic number, because the mean of its divisors is an integer number (28562301).

Almost surely, 2^680206142 is an apocalyptic number.

680206142 is an abundant number, since it is smaller than the sum of its proper divisors (690784306).

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

680206142 is a wasteful number, since it uses less digits than its factorization.

680206142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37161 (or 37154 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 680206142 is about 26080.7619137172. The cubic root of 680206142 is about 879.4547853815.

The spelling of 680206142 in words is "six hundred eighty million, two hundred six thousand, one hundred forty-two".