1022238 has 72 divisors (see below), whose sum is σ = 2756520. Its totient is φ = 272160.

The previous prime is 1022237. The next prime is 1022243. The reversal of 1022238 is 8322201.

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 1022238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022237) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16728 + ... + 16788.

It is an arithmetic number, because the mean of its divisors is an integer number (38285).

2^1022238 is an apocalyptic number.

1022238 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 1022238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1378260).

1022238 is an abundant number, since it is smaller than the sum of its proper divisors (1734282).

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

1022238 is a wasteful number, since it uses less digits than its factorization.

1022238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 92 counting only the distinct ones).

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

The square root of 1022238 is about 1011.0578618457. The cubic root of 1022238 is about 100.7358387984.

Adding to 1022238 its reverse (8322201), we get a palindrome (9344439).

The spelling of 1022238 in words is "one million, twenty-two thousand, two hundred thirty-eight".