12028724 has 24 divisors (see below), whose sum is σ = 23260608. Its totient is φ = 5413760.

The previous prime is 12028699. The next prime is 12028739. The reversal of 12028724 is 42782021.

It is a junction number, because it is equal to n+sod(n) for n = 12028693 and 12028702.

It is a congruent number.

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, 2282 + ... + 5409.

It is an arithmetic number, because the mean of its divisors is an integer number (969192).

Almost surely, 2^12028724 is an apocalyptic number.

It is an amenable number.

12028724 is a deficient number, since it is larger than the sum of its proper divisors (11231884).

12028724 is a wasteful number, since it uses less digits than its factorization.

12028724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7735 (or 7733 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 12028724 is about 3468.2450893788. The cubic root of 12028724 is about 229.1253739081.

The spelling of 12028724 in words is "twelve million, twenty-eight thousand, seven hundred twenty-four".