2685900 has 72 divisors (see below), whose sum is σ = 8888320. Its totient is φ = 613440.

The previous prime is 2685887. The next prime is 2685901. The reversal of 2685900 is 95862.

It is a super-3 number, since 3×2685900³ = 58128721673337000000, which contains 333 as substring.

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

It is an Ulam number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2685901) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1461 + ... + 2739.

2^2685900 is an apocalyptic number.

2685900 is a gapful number since it is divisible by the number (20) 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 2685900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4444160).

2685900 is an abundant number, since it is smaller than the sum of its proper divisors (6202420).

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

2685900 is a wasteful number, since it uses less digits than its factorization.

2685900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303 (or 1296 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 2685900 is about 1638.8715629969. The cubic root of 2685900 is about 139.0048477512.

The spelling of 2685900 in words is "two million, six hundred eighty-five thousand, nine hundred".