680494048 has 72 divisors (see below), whose sum is σ = 1501075800. Its totient is φ = 303174144.

The previous prime is 680494039. The next prime is 680494057. The reversal of 680494048 is 840494086.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (680494039) and next prime (680494057).

It is a junction number, because it is equal to n+sod(n) for n = 680493995 and 680494013.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 154663 + ... + 159001.

It is an arithmetic number, because the mean of its divisors is an integer number (20848275).

Almost surely, 2^680494048 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 680494048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750537900).

680494048 is an abundant number, since it is smaller than the sum of its proper divisors (820581752).

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

680494048 is a wasteful number, since it uses less digits than its factorization.

680494048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4404 (or 4383 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 680494048 is about 26086.2808387857. The cubic root of 680494048 is about 879.5788480633.

The spelling of 680494048 in words is "six hundred eighty million, four hundred ninety-four thousand, forty-eight".