22052736 has 96 divisors (see below), whose sum is σ = 65902200. Its totient is φ = 7340544.

The previous prime is 22052707. The next prime is 22052747. The reversal of 22052736 is 63725022.

It is a tau number, because it is divible by the number of its divisors (96).

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 11 ways as a sum of consecutive naturals, for example, 30750 + ... + 31458.

Almost surely, 2^22052736 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 22052736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32951100).

22052736 is an abundant number, since it is smaller than the sum of its proper divisors (43849464).

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

22052736 is an frugal number, since it uses more digits than its factorization.

22052736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 714 counting only the distinct ones).

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

The square root of 22052736 is about 4696.0340714267. The cubic root of 22052736 is about 280.4276458409.

Adding to 22052736 its reverse (63725022), we get a palindrome (85777758).

The spelling of 22052736 in words is "twenty-two million, fifty-two thousand, seven hundred thirty-six".