2068540 has 24 divisors (see below), whose sum is σ = 4420080. Its totient is φ = 812928.

The previous prime is 2068529. The next prime is 2068553. The reversal of 2068540 is 458602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304 + ... + 2056.

It is an arithmetic number, because the mean of its divisors is an integer number (184170).

2^2068540 is an apocalyptic number.

2068540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2068540 is an abundant number, since it is smaller than the sum of its proper divisors (2351540).

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

2068540 is a wasteful number, since it uses less digits than its factorization.

2068540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821 (or 1819 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2068540 is about 1438.2419824216. The cubic root of 2068540 is about 127.4152198144.

The spelling of 2068540 in words is "two million, sixty-eight thousand, five hundred forty".