2685222040 has 16 divisors (see below), whose sum is σ = 6041749680. Its totient is φ = 1074088800.

The previous prime is 2685222037. The next prime is 2685222079. The reversal of 2685222040 is 402225862.

It is a junction number, because it is equal to n+sod(n) for n = 2685221993 and 2685222011.

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, 33565236 + ... + 33565315.

It is an arithmetic number, because the mean of its divisors is an integer number (377609355).

Almost surely, 2^2685222040 is an apocalyptic number.

2685222040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2685222040 is an abundant number, since it is smaller than the sum of its proper divisors (3356527640).

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

2685222040 is a wasteful number, since it uses less digits than its factorization.

2685222040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67130562 (or 67130558 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 2685222040 is about 51819.1281285203. The cubic root of 2685222040 is about 1389.9315115574.

The spelling of 2685222040 in words is "two billion, six hundred eighty-five million, two hundred twenty-two thousand, forty".