22024044 has 144 divisors (see below), whose sum is σ = 69346368. Its totient is φ = 5750784.

The previous prime is 22024031. The next prime is 22024073. The reversal of 22024044 is 44042022.

22024044 = 333² + 334² + ... + 468².

It is a super-2 number, since 2×22024044² = 970117028227872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 47 ways as a sum of consecutive naturals, for example, 227004 + ... + 227100.

It is an arithmetic number, because the mean of its divisors is an integer number (481572).

Almost surely, 2^22024044 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 22024044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34673184).

22024044 is an abundant number, since it is smaller than the sum of its proper divisors (47322324).

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

22024044 is a wasteful number, since it uses less digits than its factorization.

22024044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 22024044 is about 4692.9781589093. The cubic root of 22024044 is about 280.3059750423.

Adding to 22024044 its reverse (44042022), we get a palindrome (66066066).

The spelling of 22024044 in words is "twenty-two million, twenty-four thousand, forty-four".