1323020 has 24 divisors (see below), whose sum is σ = 2815344. Its totient is φ = 522176.

The previous prime is 1323017. The next prime is 1323041. The reversal of 1323020 is 203231.

1323020 = 162² + 163² + ... + 201².

It is a junction number, because it is equal to n+sod(n) for n = 1322992 and 1323010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1262 + ... + 2058.

It is an arithmetic number, because the mean of its divisors is an integer number (117306).

2^1323020 is an apocalyptic number.

1323020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323020 is an abundant number, since it is smaller than the sum of its proper divisors (1492324).

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

1323020 is a wasteful number, since it uses less digits than its factorization.

1323020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 1323020 is about 1150.2260647368. The cubic root of 1323020 is about 109.7797244809.

Adding to 1323020 its reverse (203231), we get a palindrome (1526251).

The spelling of 1323020 in words is "one million, three hundred twenty-three thousand, twenty".