12821484 has 24 divisors (see below), whose sum is σ = 32218480. Its totient is φ = 3945024.

The previous prime is 12821477. The next prime is 12821491. The reversal of 12821484 is 48412821.

It is an interprime number because it is at equal distance from previous prime (12821477) and next prime (12821491).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40939 + ... + 41250.

Almost surely, 2^12821484 is an apocalyptic number.

It is an amenable number.

12821484 is an abundant number, since it is smaller than the sum of its proper divisors (19396996).

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

12821484 is a wasteful number, since it uses less digits than its factorization.

12821484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82209 (or 82207 counting only the distinct ones).

The product of its digits is 4096, while the sum is 30.

The square root of 12821484 is about 3580.7099854638. The cubic root of 12821484 is about 234.0522200645.

It can be divided in two parts, 128 and 21484, that added together give a palindrome (21612).

The spelling of 12821484 in words is "twelve million, eight hundred twenty-one thousand, four hundred eighty-four".