10220238 has 48 divisors (see below), whose sum is σ = 26189280. Its totient is φ = 2818368.

The previous prime is 10220159. The next prime is 10220239. The reversal of 10220238 is 83202201.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 10220238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2256 + ... + 5052.

It is an arithmetic number, because the mean of its divisors is an integer number (545610).

Almost surely, 2^10220238 is an apocalyptic number.

10220238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10220238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13094640).

10220238 is an abundant number, since it is smaller than the sum of its proper divisors (15969042).

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

10220238 is a wasteful number, since it uses less digits than its factorization.

10220238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2841 (or 2838 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 10220238 is about 3196.9106962816. The cubic root of 10220238 is about 217.0136258230.

Adding to 10220238 its reverse (83202201), we get a palindrome (93422439).

The spelling of 10220238 in words is "ten million, two hundred twenty thousand, two hundred thirty-eight".