2204471685 has 128 divisors (see below), whose sum is σ = 4345850880. Its totient is φ = 942391296.

The previous prime is 2204471681. The next prime is 2204471747. The reversal of 2204471685 is 5861744022.

It is not a de Polignac number, because 2204471685 - 2² = 2204471681 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204471681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2210607 + ... + 2211603.

It is an arithmetic number, because the mean of its divisors is an integer number (33951960).

Almost surely, 2^2204471685 is an apocalyptic number.

It is an amenable number.

2204471685 is a deficient number, since it is larger than the sum of its proper divisors (2141379195).

2204471685 is a wasteful number, since it uses less digits than its factorization.

2204471685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 2204471685 is about 46951.8017226176. The cubic root of 2204471685 is about 1301.4720376569.

The spelling of 2204471685 in words is "two billion, two hundred four million, four hundred seventy-one thousand, six hundred eighty-five".