681828460 has 48 divisors (see below), whose sum is σ = 1454745600. Its totient is φ = 268392384.

The previous prime is 681828457. The next prime is 681828487. The reversal of 681828460 is 64828186.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 693129 + ... + 694111.

It is an arithmetic number, because the mean of its divisors is an integer number (30307200).

Almost surely, 2^681828460 is an apocalyptic number.

It is an amenable number.

681828460 is an abundant number, since it is smaller than the sum of its proper divisors (772917140).

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

681828460 is a wasteful number, since it uses less digits than its factorization.

681828460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510 (or 1508 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 681828460 is about 26111.8452048108. The cubic root of 681828460 is about 880.1534081725.

The spelling of 681828460 in words is "six hundred eighty-one million, eight hundred twenty-eight thousand, four hundred sixty".