12078628 has 6 divisors (see below), whose sum is σ = 21137606. Its totient is φ = 6039312.

The previous prime is 12078581. The next prime is 12078629. The reversal of 12078628 is 82687021.

It can be written as a sum of positive squares in only one way, i.e., 11235904 + 842724 = 3352^2 + 918^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12078593 and 12078602.

It is not an unprimeable number, because it can be changed into a prime (12078629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1509825 + ... + 1509832.

Almost surely, 2^12078628 is an apocalyptic number.

It is an amenable number.

12078628 is a deficient number, since it is larger than the sum of its proper divisors (9058978).

12078628 is a wasteful number, since it uses less digits than its factorization.

12078628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3019661 (or 3019659 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 12078628 is about 3475.4320594712. The cubic root of 12078628 is about 229.4417969527.

The spelling of 12078628 in words is "twelve million, seventy-eight thousand, six hundred twenty-eight".