1022058 has 28 divisors (see below), whose sum is σ = 2301858. Its totient is φ = 340200.

The previous prime is 1022053. The next prime is 1022059. The reversal of 1022058 is 8502201.

It can be written as a sum of positive squares in only one way, i.e., 700569 + 321489 = 837^2 + 567^2 .

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 1022058.

It is not an unprimeable number, because it can be changed into a prime (1022053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1108 + ... + 1808.

2^1022058 is an apocalyptic number.

1022058 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 1022058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1150929).

1022058 is an abundant number, since it is smaller than the sum of its proper divisors (1279800).

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

1022058 is an frugal number, since it uses more digits than its factorization.

1022058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721 (or 706 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1022058 is about 1010.9688422498. The cubic root of 1022058 is about 100.7299257868.

Adding to 1022058 its reverse (8502201), we get a palindrome (9524259).

The spelling of 1022058 in words is "one million, twenty-two thousand, fifty-eight".