12633320 has 32 divisors (see below), whose sum is σ = 32486400. Its totient is φ = 4331328.

The previous prime is 12633311. The next prime is 12633323. The reversal of 12633320 is 2333621.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12633292 and 12633301.

It is not an unprimeable number, because it can be changed into a prime (12633323) 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, 22280 + ... + 22839.

It is an arithmetic number, because the mean of its divisors is an integer number (1015200).

Almost surely, 2^12633320 is an apocalyptic number.

12633320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12633320 is an abundant number, since it is smaller than the sum of its proper divisors (19853080).

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

12633320 is a wasteful number, since it uses less digits than its factorization.

12633320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45137 (or 45133 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 12633320 is about 3554.3381943760. The cubic root of 12633320 is about 232.9016144144.

Adding to 12633320 its reverse (2333621), we get a palindrome (14966941).

The spelling of 12633320 in words is "twelve million, six hundred thirty-three thousand, three hundred twenty".