22065372 has 168 divisors, whose sum is σ = 70511616. Its totient is φ = 5901984.

The previous prime is 22065367. The next prime is 22065389. The reversal of 22065372 is 27356022.

22065372 is a `hidden beast` number, since 2 + 2 + 0 + 653 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent 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 55 ways as a sum of consecutive naturals, for example, 469453 + ... + 469499.

It is an arithmetic number, because the mean of its divisors is an integer number (419712).

Almost surely, 2^22065372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22065372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35255808).

22065372 is an abundant number, since it is smaller than the sum of its proper divisors (48446244).

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

22065372 is a wasteful number, since it uses less digits than its factorization.

22065372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 22065372 is about 4697.3792693373. The cubic root of 22065372 is about 280.4811963717.

The spelling of 22065372 in words is "twenty-two million, sixty-five thousand, three hundred seventy-two".