2208540 has 24 divisors (see below), whose sum is σ = 6184080. Its totient is φ = 588928.

The previous prime is 2208517. The next prime is 2208559. The reversal of 2208540 is 458022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18345 + ... + 18464.

It is an arithmetic number, because the mean of its divisors is an integer number (257670).

2^2208540 is an apocalyptic number.

2208540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2208540 is an abundant number, since it is smaller than the sum of its proper divisors (3975540).

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

2208540 is a wasteful number, since it uses less digits than its factorization.

2208540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36821 (or 36819 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2208540 is about 1486.1157424642. The cubic root of 2208540 is about 130.2272160491.

The spelling of 2208540 in words is "two million, two hundred eight thousand, five hundred forty".