680455000 has 160 divisors (see below), whose sum is σ = 1708328160. Its totient is φ = 253440000.

The previous prime is 680454967. The next prime is 680455019. The reversal of 680455000 is 554086.

680455000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 680455000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7014952 + ... + 7015048.

It is an arithmetic number, because the mean of its divisors is an integer number (10677051).

Almost surely, 2^680455000 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 680455000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (854164080).

680455000 is an abundant number, since it is smaller than the sum of its proper divisors (1027873160).

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

680455000 is a wasteful number, since it uses less digits than its factorization.

680455000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 680455000 is about 26085.5323886633. The cubic root of 680455000 is about 879.5620237908.

The spelling of 680455000 in words is "six hundred eighty million, four hundred fifty-five thousand".