12584428 has 6 divisors (see below), whose sum is σ = 22022756. Its totient is φ = 6292212.

The previous prime is 12584401. The next prime is 12584443. The reversal of 12584428 is 82448521.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 12584393 and 12584402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1573050 + ... + 1573057.

Almost surely, 2^12584428 is an apocalyptic number.

It is an amenable number.

12584428 is a deficient number, since it is larger than the sum of its proper divisors (9438328).

12584428 is a wasteful number, since it uses less digits than its factorization.

12584428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3146111 (or 3146109 counting only the distinct ones).

The product of its digits is 20480, while the sum is 34.

The square root of 12584428 is about 3547.4537347230. The cubic root of 12584428 is about 232.6007764458.

The spelling of 12584428 in words is "twelve million, five hundred eighty-four thousand, four hundred twenty-eight".