1324356020 has 24 divisors (see below), whose sum is σ = 2995082664. Its totient is φ = 488992896.

The previous prime is 1324356017. The next prime is 1324356029. The reversal of 1324356020 is 206534231.

It can be written as a sum of positive squares in 4 ways, for example, as 50865424 + 1273490596 = 7132^2 + 35686^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1324356029) 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, 2546579 + ... + 2547098.

It is an arithmetic number, because the mean of its divisors is an integer number (124795111).

Almost surely, 2^1324356020 is an apocalyptic number.

1324356020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1324356020 is an abundant number, since it is smaller than the sum of its proper divisors (1670726644).

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

1324356020 is a wasteful number, since it uses less digits than its factorization.

1324356020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5093699 (or 5093697 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1324356020 is about 36391.7026257360. The cubic root of 1324356020 is about 1098.1666485610.

The spelling of 1324356020 in words is "one billion, three hundred twenty-four million, three hundred fifty-six thousand, twenty".