681342376 has 32 divisors (see below), whose sum is σ = 1500861600. Its totient is φ = 285877440.

The previous prime is 681342349. The next prime is 681342377. The reversal of 681342376 is 673243186.

It is not an unprimeable number, because it can be changed into a prime (681342377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296646 + ... + 298933.

It is an arithmetic number, because the mean of its divisors is an integer number (46901925).

Almost surely, 2^681342376 is an apocalyptic number.

It is an amenable number.

681342376 is an abundant number, since it is smaller than the sum of its proper divisors (819519224).

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

681342376 is a wasteful number, since it uses less digits than its factorization.

681342376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595609 (or 595605 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 681342376 is about 26102.5358155103. The cubic root of 681342376 is about 879.9442010074.

The spelling of 681342376 in words is "six hundred eighty-one million, three hundred forty-two thousand, three hundred seventy-six".