2208284240 has 20 divisors (see below), whose sum is σ = 5134261044. Its totient is φ = 883313664.

The previous prime is 2208284233. The next prime is 2208284261. The reversal of 2208284240 is 424828022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 733109776 + 1475174464 = 27076^2 + 38408^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 2208284197 and 2208284206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13801697 + ... + 13801856.

Almost surely, 2^2208284240 is an apocalyptic number.

2208284240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2208284240 is an abundant number, since it is smaller than the sum of its proper divisors (2925976804).

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

2208284240 is a wasteful number, since it uses less digits than its factorization.

2208284240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27603566 (or 27603560 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 2208284240 is about 46992.3849150051. The cubic root of 2208284240 is about 1302.2218886692.

The spelling of 2208284240 in words is "two billion, two hundred eight million, two hundred eighty-four thousand, two hundred forty".