2205670445 has 16 divisors (see below), whose sum is σ = 3012964992. Its totient is φ = 1534378560.

The previous prime is 2205670417. The next prime is 2205670447. The reversal of 2205670445 is 5440765022.

It is not a de Polignac number, because 2205670445 - 2¹⁸ = 2205408301 is a prime.

It is a super-2 number, since 2×2205670445² = 9729964223892996050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205670447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 870542 + ... + 873071.

It is an arithmetic number, because the mean of its divisors is an integer number (188310312).

Almost surely, 2^2205670445 is an apocalyptic number.

It is an amenable number.

2205670445 is a deficient number, since it is larger than the sum of its proper divisors (807294547).

2205670445 is a wasteful number, since it uses less digits than its factorization.

2205670445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743652.

The product of its (nonzero) digits is 67200, while the sum is 35.

The square root of 2205670445 is about 46964.5658449006. The cubic root of 2205670445 is about 1301.7079021680.

The spelling of 2205670445 in words is "two billion, two hundred five million, six hundred seventy thousand, four hundred forty-five".