1022190 has 32 divisors (see below), whose sum is σ = 2642976. Its totient is φ = 251520.

The previous prime is 1022183. The next prime is 1022191. The reversal of 1022190 is 912201.

It is a happy number.

It is a super-2 number, since 2×1022190² = 2089744792200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921 + ... + 1700.

It is an arithmetic number, because the mean of its divisors is an integer number (82593).

2^1022190 is an apocalyptic number.

1022190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1022190 is an abundant number, since it is smaller than the sum of its proper divisors (1620786).

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

1022190 is a wasteful number, since it uses less digits than its factorization.

1022190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1022190 is about 1011.0341240532. The cubic root of 1022190 is about 100.7342620632.

Adding to 1022190 its reverse (912201), we get a palindrome (1934391).

The spelling of 1022190 in words is "one million, twenty-two thousand, one hundred ninety".