12403828 has 6 divisors (see below), whose sum is σ = 21706706. Its totient is φ = 6201912.

The previous prime is 12403763. The next prime is 12403837. The reversal of 12403828 is 82830421.

12403828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12194064 + 209764 = 3492^2 + 458^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12403796 and 12403805.

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, 1550475 + ... + 1550482.

Almost surely, 2^12403828 is an apocalyptic number.

It is an amenable number.

12403828 is a deficient number, since it is larger than the sum of its proper divisors (9302878).

12403828 is a wasteful number, since it uses less digits than its factorization.

12403828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100961 (or 3100959 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 12403828 is about 3521.9068698647. The cubic root of 12403828 is about 231.4827208701.

It can be divided in two parts, 12403 and 828, that added together give a palindrome (13231).

The spelling of 12403828 in words is "twelve million, four hundred three thousand, eight hundred twenty-eight".