1223772306 has 16 divisors (see below), whose sum is σ = 2526498048. Its totient is φ = 394765200.

The previous prime is 1223772289. The next prime is 1223772307. The reversal of 1223772306 is 6032773221.

It is not an unprimeable number, because it can be changed into a prime (1223772307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3289525 + ... + 3289896.

It is an arithmetic number, because the mean of its divisors is an integer number (157906128).

Almost surely, 2^1223772306 is an apocalyptic number.

1223772306 is an abundant number, since it is smaller than the sum of its proper divisors (1302725742).

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

1223772306 is a wasteful number, since it uses less digits than its factorization.

1223772306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6579457.

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 1223772306 is about 34982.4571178184. The cubic root of 1223772306 is about 1069.6299142277.

The spelling of 1223772306 in words is "one billion, two hundred twenty-three million, seven hundred seventy-two thousand, three hundred six".