2208240 has 60 divisors (see below), whose sum is σ = 7418424. Its totient is φ = 588672.

The previous prime is 2208229. The next prime is 2208257. The reversal of 2208240 is 428022.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 814 + ... + 2253.

2^2208240 is an apocalyptic number.

2208240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2208240 is an abundant number, since it is smaller than the sum of its proper divisors (5210184).

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

2208240 is a wasteful number, since it uses less digits than its factorization.

2208240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3086 (or 3077 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2208240 is about 1486.0148047715. The cubic root of 2208240 is about 130.2213192524.

It can be divided in two parts, 22082 and 40, that added together give a palindrome (22122).

The spelling of 2208240 in words is "two million, two hundred eight thousand, two hundred forty".