685362144 has 24 divisors (see below), whose sum is σ = 1799075880. Its totient is φ = 228454016.

The previous prime is 685362127. The next prime is 685362151. The reversal of 685362144 is 441263586.

685362144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3569499 + ... + 3569690.

It is an arithmetic number, because the mean of its divisors is an integer number (74961495).

Almost surely, 2^685362144 is an apocalyptic number.

It is an amenable number.

685362144 is an abundant number, since it is smaller than the sum of its proper divisors (1113713736).

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

685362144 is a wasteful number, since it uses less digits than its factorization.

685362144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7139202 (or 7139194 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 685362144 is about 26179.4221479390. The cubic root of 685362144 is about 881.6713004324.

The spelling of 685362144 in words is "six hundred eighty-five million, three hundred sixty-two thousand, one hundred forty-four".