2685934728 has 40 divisors (see below), whose sum is σ = 7523106030. Its totient is φ = 895311360.

The previous prime is 2685934717. The next prime is 2685934729. The reversal of 2685934728 is 8274395862.

2685934728 is a `hidden beast` number, since 2 + 6 + 8 + 593 + 47 + 2 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2188555524 + 497379204 = 46782^2 + 22302^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2685934729) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2071833 + ... + 2073128.

Almost surely, 2^2685934728 is an apocalyptic number.

It is an amenable number.

2685934728 is an abundant number, since it is smaller than the sum of its proper divisors (4837171302).

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

2685934728 is a wasteful number, since it uses less digits than its factorization.

2685934728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4144979 (or 4144966 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 2685934728 is about 51826.0043607454. The cubic root of 2685934728 is about 1390.0544684761.

The spelling of 2685934728 in words is "two billion, six hundred eighty-five million, nine hundred thirty-four thousand, seven hundred twenty-eight".