12478528 has 14 divisors (see below), whose sum is σ = 24762206. Its totient is φ = 6239232.

The previous prime is 12478519. The next prime is 12478541. The reversal of 12478528 is 82587421.

It can be written as a sum of positive squares in only one way, i.e., 11888704 + 589824 = 3448^2 + 768^2 .

It is a super-2 number, since 2×12478528² = 311427322093568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97425 + ... + 97552.

It is an arithmetic number, because the mean of its divisors is an integer number (1768729).

Almost surely, 2^12478528 is an apocalyptic number.

It is an amenable number.

12478528 is a deficient number, since it is larger than the sum of its proper divisors (12283678).

12478528 is an equidigital number, since it uses as much as digits as its factorization.

12478528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194989 (or 194979 counting only the distinct ones).

The product of its digits is 35840, while the sum is 37.

The square root of 12478528 is about 3532.4960014132. The cubic root of 12478528 is about 231.9464799255.

The spelling of 12478528 in words is "twelve million, four hundred seventy-eight thousand, five hundred twenty-eight".