2205072684 has 18 divisors (see below), whose sum is σ = 5573933820. Its totient is φ = 735024216.

The previous prime is 2205072673. The next prime is 2205072689. The reversal of 2205072684 is 4862705022.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 61252019 = 2205072684 / (2 + 2 + 0 + 5 + 0 + 7 + 2 + 6 + 8 + 4).

It is not an unprimeable number, because it can be changed into a prime (2205072689) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 30625974 + ... + 30626045.

It is an arithmetic number, because the mean of its divisors is an integer number (309662990).

Almost surely, 2^2205072684 is an apocalyptic number.

It is an amenable number.

2205072684 is an abundant number, since it is smaller than the sum of its proper divisors (3368861136).

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

2205072684 is a wasteful number, since it uses less digits than its factorization.

2205072684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61252029 (or 61252024 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 2205072684 is about 46958.2014561887. The cubic root of 2205072684 is about 1301.5902991475.

The spelling of 2205072684 in words is "two billion, two hundred five million, seventy-two thousand, six hundred eighty-four".