1022188 has 12 divisors (see below), whose sum is σ = 1796032. Its totient is φ = 509040.

The previous prime is 1022183. The next prime is 1022191. The reversal of 1022188 is 8812201.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1022183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381 + ... + 1987.

2^1022188 is an apocalyptic number.

It is an amenable number.

1022188 is a deficient number, since it is larger than the sum of its proper divisors (773844).

1022188 is a wasteful number, since it uses less digits than its factorization.

1022188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032 (or 1030 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 1022188 is about 1011.0331349664. The cubic root of 1022188 is about 100.7341963648.

Adding to 1022188 its reverse (8812201), we get a palindrome (9834389).

The spelling of 1022188 in words is "one million, twenty-two thousand, one hundred eighty-eight".