1323820460 has 12 divisors (see below), whose sum is σ = 2780023008. Its totient is φ = 529528176.

The previous prime is 1323820439. The next prime is 1323820493. The reversal of 1323820460 is 640283231.

It is a super-2 number, since 2×1323820460² = 3505001220629223200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33095492 + ... + 33095531.

It is an arithmetic number, because the mean of its divisors is an integer number (231668584).

Almost surely, 2^1323820460 is an apocalyptic number.

1323820460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323820460 is an abundant number, since it is smaller than the sum of its proper divisors (1456202548).

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

1323820460 is a wasteful number, since it uses less digits than its factorization.

1323820460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66191032 (or 66191030 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1323820460 is about 36384.3436109544. The cubic root of 1323820460 is about 1098.0185983846.

The spelling of 1323820460 in words is "one billion, three hundred twenty-three million, eight hundred twenty thousand, four hundred sixty".