22772036 has 12 divisors (see below), whose sum is σ = 45544128. Its totient is φ = 9759432.

The previous prime is 22772021. The next prime is 22772039. The reversal of 22772036 is 63027722.

22772036 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (22772039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406616 + ... + 406671.

It is an arithmetic number, because the mean of its divisors is an integer number (3795344).

Almost surely, 2^22772036 is an apocalyptic number.

It is an amenable number.

22772036 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22772036 is a wasteful number, since it uses less digits than its factorization.

22772036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813298 (or 813296 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 22772036 is about 4772.0054484462. The cubic root of 22772036 is about 283.4440124305. Note that the first 3 decimals are identical.

Adding to 22772036 its reverse (63027722), we get a palindrome (85799758).

The spelling of 22772036 in words is "twenty-two million, seven hundred seventy-two thousand, thirty-six".