2209230772 has 24 divisors (see below), whose sum is σ = 4462214400. Its totient is φ = 937437600.

The previous prime is 2209230763. The next prime is 2209230773. The reversal of 2209230772 is 2770329022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2209230773) 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 7 ways as a sum of consecutive naturals, for example, 387772 + ... + 393427.

It is an arithmetic number, because the mean of its divisors is an integer number (185925600).

Almost surely, 2^2209230772 is an apocalyptic number.

It is an amenable number.

2209230772 is an abundant number, since it is smaller than the sum of its proper divisors (2252983628).

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

2209230772 is a wasteful number, since it uses less digits than its factorization.

2209230772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781311 (or 781309 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 2209230772 is about 47002.4549571615. The cubic root of 2209230772 is about 1302.4079182573.

Adding to 2209230772 its reverse (2770329022), we get a palindrome (4979559794).

The spelling of 2209230772 in words is "two billion, two hundred nine million, two hundred thirty thousand, seven hundred seventy-two".