2207730845 has 6 divisors (see below), whose sum is σ = 2649403098. Its totient is φ = 1766100624.

The previous prime is 2207730803. The next prime is 2207730851. The reversal of 2207730845 is 5480377022.

2207730845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 424442404 + 1783288441 = 20602^2 + 42229^2 .

It is not a de Polignac number, because 2207730845 - 2¹² = 2207726749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2207730799 and 2207730808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 94559 + ... + 115571.

It is an arithmetic number, because the mean of its divisors is an integer number (441567183).

Almost surely, 2^2207730845 is an apocalyptic number.

It is an amenable number.

2207730845 is a deficient number, since it is larger than the sum of its proper divisors (441672253).

2207730845 is an frugal number, since it uses more digits than its factorization.

2207730845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42031 (or 21018 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 2207730845 is about 46986.4964112031. The cubic root of 2207730845 is about 1302.1131008488.

The spelling of 2207730845 in words is "two billion, two hundred seven million, seven hundred thirty thousand, eight hundred forty-five".