22144416 has 96 divisors (see below), whose sum is σ = 68640768. Its totient is φ = 6117120.

The previous prime is 22144393. The next prime is 22144427. The reversal of 22144416 is 61444122.

It is a happy number.

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 (24).

It is a nude number because it is divisible by every one of its digits.

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 15 ways as a sum of consecutive naturals, for example, 20301 + ... + 21363.

It is an arithmetic number, because the mean of its divisors is an integer number (715008).

Almost surely, 2^22144416 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 22144416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34320384).

22144416 is an abundant number, since it is smaller than the sum of its proper divisors (46496352).

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

22144416 is a wasteful number, since it uses less digits than its factorization.

22144416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114 (or 1106 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 22144416 is about 4705.7853754713. The cubic root of 22144416 is about 280.8157165252.

Adding to 22144416 its reverse (61444122), we get a palindrome (83588538).

The spelling of 22144416 in words is "twenty-two million, one hundred forty-four thousand, four hundred sixteen".