1322628 has 24 divisors (see below), whose sum is σ = 3249120. Its totient is φ = 417600.

The previous prime is 1322621. The next prime is 1322641. The reversal of 1322628 is 8262231.

It is a d-powerful number, because it can be written as 1 + 3³ + 2¹² + 2¹⁸ + 6⁵ + 2²⁰ + 8 .

It is a junction number, because it is equal to n+sod(n) for n = 1322598 and 1322607.

It is not an unprimeable number, because it can be changed into a prime (1322621) 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, 2673 + ... + 3128.

It is an arithmetic number, because the mean of its divisors is an integer number (135380).

2^1322628 is an apocalyptic number.

It is an amenable number.

1322628 is an abundant number, since it is smaller than the sum of its proper divisors (1926492).

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

1322628 is a wasteful number, since it uses less digits than its factorization.

1322628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5827 (or 5825 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 1322628 is about 1150.0556508274. The cubic root of 1322628 is about 109.7688811319.

Adding to 1322628 its reverse (8262231), we get a palindrome (9584859).

The spelling of 1322628 in words is "one million, three hundred twenty-two thousand, six hundred twenty-eight".