1323164420 has 96 divisors (see below), whose sum is σ = 2913563520. Its totient is φ = 504437760.

The previous prime is 1323164419. The next prime is 1323164477. The reversal of 1323164420 is 244613231.

It is a self number, because there is not a number n which added to its sum of digits gives 1323164420.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7391891 + ... + 7392069.

It is an arithmetic number, because the mean of its divisors is an integer number (30349620).

Almost surely, 2^1323164420 is an apocalyptic number.

1323164420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323164420 is an abundant number, since it is smaller than the sum of its proper divisors (1590399100).

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

1323164420 is a wasteful number, since it uses less digits than its factorization.

1323164420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1323164420 is about 36375.3270775673. The cubic root of 1323164420 is about 1097.8371882996.

Adding to 1323164420 its reverse (244613231), we get a palindrome (1567777651).

The spelling of 1323164420 in words is "one billion, three hundred twenty-three million, one hundred sixty-four thousand, four hundred twenty".