685026120 has 64 divisors (see below), whose sum is σ = 2102886720. Its totient is φ = 178424064.

The previous prime is 685026119. The next prime is 685026161. The reversal of 685026120 is 21620586.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 61219 + ... + 71538.

It is an arithmetic number, because the mean of its divisors is an integer number (32857605).

Almost surely, 2^685026120 is an apocalyptic number.

685026120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

685026120 is an abundant number, since it is smaller than the sum of its proper divisors (1417860600).

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

685026120 is a wasteful number, since it uses less digits than its factorization.

685026120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132814 (or 132810 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 685026120 is about 26173.0036487981. The cubic root of 685026120 is about 881.5271862825.

The spelling of 685026120 in words is "six hundred eighty-five million, twenty-six thousand, one hundred twenty".