12033720 has 48 divisors (see below), whose sum is σ = 39110760. Its totient is φ = 3208896.

The previous prime is 12033691. The next prime is 12033727. The reversal of 12033720 is 2733021.

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 = 12033693 and 12033702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12033727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16354 + ... + 17073.

Almost surely, 2^12033720 is an apocalyptic number.

12033720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12033720 is an abundant number, since it is smaller than the sum of its proper divisors (27077040).

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

12033720 is a wasteful number, since it uses less digits than its factorization.

12033720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33444 (or 33437 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 12033720 is about 3468.9652635909. The cubic root of 12033720 is about 229.1570910967.

Adding to 12033720 its reverse (2733021), we get a palindrome (14766741).

The spelling of 12033720 in words is "twelve million, thirty-three thousand, seven hundred twenty".