20225344 has 28 divisors (see below), whose sum is σ = 40709088. Its totient is φ = 9968000.

The previous prime is 20225327. The next prime is 20225353. The reversal of 20225344 is 44352202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2319 + ... + 6769.

It is an arithmetic number, because the mean of its divisors is an integer number (1453896).

Almost surely, 2^20225344 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 20225344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20354544).

20225344 is an abundant number, since it is smaller than the sum of its proper divisors (20483744).

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

20225344 is an equidigital number, since it uses as much as digits as its factorization.

20225344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4534 (or 4524 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 20225344 is about 4497.2596100292. The cubic root of 20225344 is about 272.4574194893.

Adding to 20225344 its reverse (44352202), we get a palindrome (64577546).

The spelling of 20225344 in words is "twenty million, two hundred twenty-five thousand, three hundred forty-four".