1028190 has 16 divisors (see below), whose sum is σ = 2467728. Its totient is φ = 274176.

The previous prime is 1028189. The next prime is 1028191. The reversal of 1028190 is 918201.

It is an interprime number because it is at equal distance from previous prime (1028189) and next prime (1028191).

It is a super-2 number, since 2×1028190² = 2114349352200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17107 + ... + 17166.

It is an arithmetic number, because the mean of its divisors is an integer number (154233).

2^1028190 is an apocalyptic number.

1028190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1028190 is an abundant number, since it is smaller than the sum of its proper divisors (1439538).

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

1028190 is a wasteful number, since it uses less digits than its factorization.

1028190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34283.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 1028190 is about 1013.9970414158. The cubic root of 1028190 is about 100.9309726694.

The spelling of 1028190 in words is "one million, twenty-eight thousand, one hundred ninety".