20122344 has 96 divisors (see below), whose sum is σ = 61719840. Its totient is φ = 6091200.

The previous prime is 20122343. The next prime is 20122369. The reversal of 20122344 is 44322102.

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

It is not an unprimeable number, because it can be changed into a prime (20122343) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 20914 + ... + 21854.

It is an arithmetic number, because the mean of its divisors is an integer number (642915).

Almost surely, 2^20122344 is an apocalyptic number.

20122344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20122344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30859920).

20122344 is an abundant number, since it is smaller than the sum of its proper divisors (41597496).

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

20122344 is a wasteful number, since it uses less digits than its factorization.

20122344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973 (or 957 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20122344 is about 4485.7935752774. The cubic root of 20122344 is about 271.9941247289.

Adding to 20122344 its reverse (44322102), we get a palindrome (64444446).

It can be divided in two parts, 2012 and 2344, that added together give a square (4356 = 66²).

The spelling of 20122344 in words is "twenty million, one hundred twenty-two thousand, three hundred forty-four".