20293224 has 64 divisors (see below), whose sum is σ = 58368000. Its totient is φ = 5759424.

The previous prime is 20293219. The next prime is 20293241. The reversal of 20293224 is 42239202.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 20293194 and 20293203.

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, 33129 + ... + 33735.

It is an arithmetic number, because the mean of its divisors is an integer number (912000).

Almost surely, 2^20293224 is an apocalyptic number.

20293224 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 20293224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29184000).

20293224 is an abundant number, since it is smaller than the sum of its proper divisors (38074776).

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

20293224 is a wasteful number, since it uses less digits than its factorization.

20293224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20293224 is about 4504.8001065530. The cubic root of 20293224 is about 272.7618849809.

It can be divided in two parts, 2029 and 3224, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 20293224 in words is "twenty million, two hundred ninety-three thousand, two hundred twenty-four".