22322772 has 36 divisors (see below), whose sum is σ = 56609280. Its totient is φ = 7416912.

The previous prime is 22322771. The next prime is 22322789. The reversal of 22322772 is 27722322.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×22322772³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22322771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12979 + ... + 14597.

It is an arithmetic number, because the mean of its divisors is an integer number (1572480).

Almost surely, 2^22322772 is an apocalyptic number.

It is an amenable number.

22322772 is an abundant number, since it is smaller than the sum of its proper divisors (34286508).

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

22322772 is a wasteful number, since it uses less digits than its factorization.

22322772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012 (or 2007 counting only the distinct ones).

The product of its digits is 4704, while the sum is 27.

The square root of 22322772 is about 4724.6980855923. The cubic root of 22322772 is about 281.5676186563.

The spelling of 22322772 in words is "twenty-two million, three hundred twenty-two thousand, seven hundred seventy-two".