12326820 has 96 divisors (see below), whose sum is σ = 39674880. Its totient is φ = 2828160.

The previous prime is 12326813. The next prime is 12326837. The reversal of 12326820 is 2862321.

12326820 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, 12049 + ... + 13031.

It is an arithmetic number, because the mean of its divisors is an integer number (413280).

Almost surely, 2^12326820 is an apocalyptic number.

12326820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12326820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19837440).

12326820 is an abundant number, since it is smaller than the sum of its proper divisors (27348060).

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

12326820 is a wasteful number, since it uses less digits than its factorization.

12326820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025 (or 1023 counting only the distinct ones).

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

The square root of 12326820 is about 3510.9571344578. The cubic root of 12326820 is about 231.0026798287.

The spelling of 12326820 in words is "twelve million, three hundred twenty-six thousand, eight hundred twenty".