1322028 has 24 divisors (see below), whose sum is σ = 3427760. Its totient is φ = 440640.

The previous prime is 1322021. The next prime is 1322033. The reversal of 1322028 is 8202231.

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 1322028.

It is not an unprimeable number, because it can be changed into a prime (1322021) 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, 6013 + ... + 6228.

2^1322028 is an apocalyptic number.

1322028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1322028 is an abundant number, since it is smaller than the sum of its proper divisors (2105732).

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

1322028 is a wasteful number, since it uses less digits than its factorization.

1322028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12254 (or 12246 counting only the distinct ones).

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

The square root of 1322028 is about 1149.7947642949. The cubic root of 1322028 is about 109.7522800190.

Adding to 1322028 its reverse (8202231), we get a palindrome (9524259).

The spelling of 1322028 in words is "one million, three hundred twenty-two thousand, twenty-eight".