681074942 has 16 divisors (see below), whose sum is σ = 1066908672. Its totient is φ = 325463160.

The previous prime is 681074941. The next prime is 681074959. The reversal of 681074942 is 249470186.

It is a self number, because there is not a number n which added to its sum of digits gives 681074942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681074941) 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, 57467 + ... + 68297.

It is an arithmetic number, because the mean of its divisors is an integer number (66681792).

Almost surely, 2^681074942 is an apocalyptic number.

681074942 is a deficient number, since it is larger than the sum of its proper divisors (385833730).

681074942 is a wasteful number, since it uses less digits than its factorization.

681074942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12223.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 681074942 is about 26097.4125537380. The cubic root of 681074942 is about 879.8290568440.

The spelling of 681074942 in words is "six hundred eighty-one million, seventy-four thousand, nine hundred forty-two".