681046038 has 12 divisors (see below), whose sum is σ = 1475599788. Its totient is φ = 227015340.

The previous prime is 681046019. The next prime is 681046049. The reversal of 681046038 is 830640186.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 681045993 and 681046011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18917928 + ... + 18917963.

It is an arithmetic number, because the mean of its divisors is an integer number (122966649).

Almost surely, 2^681046038 is an apocalyptic number.

681046038 is an abundant number, since it is smaller than the sum of its proper divisors (794553750).

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

681046038 is a wasteful number, since it uses less digits than its factorization.

681046038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37835899 (or 37835896 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 681046038 is about 26096.8587764888. The cubic root of 681046038 is about 879.8166103729.

The spelling of 681046038 in words is "six hundred eighty-one million, forty-six thousand, thirty-eight".