2220230745 has 12 divisors (see below), whose sum is σ = 3848400036. Its totient is φ = 1184123040.

The previous prime is 2220230723. The next prime is 2220230759. The reversal of 2220230745 is 5470320222.

It can be written as a sum of positive squares in 2 ways, for example, as 407514969 + 1812715776 = 20187^2 + 42576^2 .

It is not a de Polignac number, because 2220230745 - 2⁵ = 2220230713 is a prime.

It is a super-3 number, since 3×2220230745³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24669186 + ... + 24669275.

It is an arithmetic number, because the mean of its divisors is an integer number (320700003).

Almost surely, 2^2220230745 is an apocalyptic number.

It is an amenable number.

2220230745 is a deficient number, since it is larger than the sum of its proper divisors (1628169291).

2220230745 is a wasteful number, since it uses less digits than its factorization.

2220230745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49338472 (or 49338469 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 2220230745 is about 47119.3245388768. The cubic root of 2220230745 is about 1304.5659453976.

Adding to 2220230745 its reverse (5470320222), we get a palindrome (7690550967).

The spelling of 2220230745 in words is "two billion, two hundred twenty million, two hundred thirty thousand, seven hundred forty-five".