22016736 has 144 divisors (see below), whose sum is σ = 73067904. Its totient is φ = 6158592.

The previous prime is 22016723. The next prime is 22016749. The reversal of 22016736 is 63761022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22016723) and next prime (22016749).

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134991 + ... + 135153.

It is an arithmetic number, because the mean of its divisors is an integer number (507416).

Almost surely, 2^22016736 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 22016736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36533952).

22016736 is an abundant number, since it is smaller than the sum of its proper divisors (51051168).

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

22016736 is a wasteful number, since it uses less digits than its factorization.

22016736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 22016736 is about 4692.1994842504. The cubic root of 22016736 is about 280.2749679805.

Adding to 22016736 its reverse (63761022), we get a palindrome (85777758).

The spelling of 22016736 in words is "twenty-two million, sixteen thousand, seven hundred thirty-six".