12031828 has 6 divisors (see below), whose sum is σ = 21055706. Its totient is φ = 6015912.

The previous prime is 12031777. The next prime is 12031837. The reversal of 12031828 is 82813021.

It can be written as a sum of positive squares in only one way, i.e., 11410884 + 620944 = 3378^2 + 788^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1503975 + ... + 1503982.

Almost surely, 2^12031828 is an apocalyptic number.

It is an amenable number.

12031828 is a deficient number, since it is larger than the sum of its proper divisors (9023878).

12031828 is a wasteful number, since it uses less digits than its factorization.

12031828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007961 (or 3007959 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 12031828 is about 3468.6925490738. The cubic root of 12031828 is about 229.1450807363.

Adding to 12031828 its reverse (82813021), we get a palindrome (94844849).

The spelling of 12031828 in words is "twelve million, thirty-one thousand, eight hundred twenty-eight".