685034080 has 24 divisors (see below), whose sum is σ = 1618393392. Its totient is φ = 274013568.

The previous prime is 685034059. The next prime is 685034081. The reversal of 685034080 is 80430586.

It is a super-2 number, since 2×685034080² = 938543381522892800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685034081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2140572 + ... + 2140891.

It is an arithmetic number, because the mean of its divisors is an integer number (67433058).

Almost surely, 2^685034080 is an apocalyptic number.

It is an amenable number.

685034080 is an abundant number, since it is smaller than the sum of its proper divisors (933359312).

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

685034080 is a wasteful number, since it uses less digits than its factorization.

685034080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4281478 (or 4281470 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 685034080 is about 26173.1557134404. The cubic root of 685034080 is about 881.5306007164.

The spelling of 685034080 in words is "six hundred eighty-five million, thirty-four thousand, eighty".