681034176 has 112 divisors (see below), whose sum is σ = 2107590400. Its totient is φ = 215053056.

The previous prime is 681034171. The next prime is 681034181. The reversal of 681034176 is 671430186.

It is an interprime number because it is at equal distance from previous prime (681034171) and next prime (681034181).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 681034176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681034171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22461 + ... + 43203.

Almost surely, 2^681034176 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 681034176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1053795200).

681034176 is an abundant number, since it is smaller than the sum of its proper divisors (1426556224).

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

681034176 is a wasteful number, since it uses less digits than its factorization.

681034176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20783 (or 20767 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 681034176 is about 26096.6315067673. The cubic root of 681034176 is about 879.8115023260.

The spelling of 681034176 in words is "six hundred eighty-one million, thirty-four thousand, one hundred seventy-six".