2205640470 has 32 divisors (see below), whose sum is σ = 5774768640. Its totient is φ = 534700640.

The previous prime is 2205640457. The next prime is 2205640511. The reversal of 2205640470 is 740465022.

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

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 15 ways as a sum of consecutive naturals, for example, 3341550 + ... + 3342209.

It is an arithmetic number, because the mean of its divisors is an integer number (180461520).

Almost surely, 2^2205640470 is an apocalyptic number.

2205640470 is an abundant number, since it is smaller than the sum of its proper divisors (3569128170).

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

2205640470 is a wasteful number, since it uses less digits than its factorization.

2205640470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6683780.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 2205640470 is about 46964.2467202445. The cubic root of 2205640470 is about 1301.7020054166.

It can be divided in two parts, 22056 and 40470, that added together give a palindrome (62526).

The spelling of 2205640470 in words is "two billion, two hundred five million, six hundred forty thousand, four hundred seventy".