22040744 has 48 divisors (see below), whose sum is σ = 46681920. Its totient is φ = 9671040.

The previous prime is 22040731. The next prime is 22040747. The reversal of 22040744 is 44704022.

It is not an unprimeable number, because it can be changed into a prime (22040747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 301892 + ... + 301964.

It is an arithmetic number, because the mean of its divisors is an integer number (972540).

Almost surely, 2^22040744 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 22040744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23340960).

22040744 is an abundant number, since it is smaller than the sum of its proper divisors (24641176).

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

22040744 is a wasteful number, since it uses less digits than its factorization.

22040744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 22040744 is about 4694.7570757175. The cubic root of 22040744 is about 280.3768056174.

Adding to 22040744 its reverse (44704022), we get a palindrome (66744766).

Subtracting 22040744 from its reverse (44704022), we obtain a triangular number (22663278 = T₆₇₃₂).

The spelling of 22040744 in words is "twenty-two million, forty thousand, seven hundred forty-four".