12302820 has 48 divisors (see below), whose sum is σ = 38277120. Its totient is φ = 3280608.

The previous prime is 12302813. The next prime is 12302821. The reversal of 12302820 is 2820321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12302793 and 12302802.

It is not an unprimeable number, because it can be changed into a prime (12302821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10852 + ... + 11931.

It is an arithmetic number, because the mean of its divisors is an integer number (797440).

Almost surely, 2^12302820 is an apocalyptic number.

12302820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12302820 is an abundant number, since it is smaller than the sum of its proper divisors (25974300).

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

12302820 is a wasteful number, since it uses less digits than its factorization.

12302820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22801 (or 22793 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 12302820 is about 3507.5375978028. The cubic root of 12302820 is about 230.8526636780.

The spelling of 12302820 in words is "twelve million, three hundred two thousand, eight hundred twenty".