2685390312 has 192 divisors, whose sum is σ = 7921189440. Its totient is φ = 752025600.

The previous prime is 2685390299. The next prime is 2685390359. The reversal of 2685390312 is 2130935862.

It is a super-2 number, since 2×2685390312² = 14422642255566914688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4653768 + ... + 4654344.

It is an arithmetic number, because the mean of its divisors is an integer number (41256195).

Almost surely, 2^2685390312 is an apocalyptic number.

2685390312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2685390312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3960594720).

2685390312 is an abundant number, since it is smaller than the sum of its proper divisors (5235799128).

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

2685390312 is a wasteful number, since it uses less digits than its factorization.

2685390312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 2685390312 is about 51820.7517506259. The cubic root of 2685390312 is about 1389.9605447455.

The spelling of 2685390312 in words is "two billion, six hundred eighty-five million, three hundred ninety thousand, three hundred twelve".