20363224 has 64 divisors (see below), whose sum is σ = 45864000. Its totient is φ = 8467200.

The previous prime is 20363197. The next prime is 20363251. The reversal of 20363224 is 42236302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20363197) and next prime (20363251).

It is a junction number, because it is equal to n+sod(n) for n = 20363195 and 20363204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112414 + ... + 112594.

It is an arithmetic number, because the mean of its divisors is an integer number (716625).

Almost surely, 2^20363224 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 20363224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22932000).

20363224 is an abundant number, since it is smaller than the sum of its proper divisors (25500776).

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

20363224 is a wasteful number, since it uses less digits than its factorization.

20363224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 20363224 is about 4512.5629081488. The cubic root of 20363224 is about 273.0751491561.

Adding to 20363224 its reverse (42236302), we get a palindrome (62599526).

The spelling of 20363224 in words is "twenty million, three hundred sixty-three thousand, two hundred twenty-four".