12604378 has 16 divisors (see below), whose sum is σ = 20091240. Its totient is φ = 5910016.

The previous prime is 12604373. The next prime is 12604379. The reversal of 12604378 is 87340621.

It can be written as a sum of positive squares in 4 ways, for example, as 10452289 + 2152089 = 3233^2 + 1467^2 .

It is not an unprimeable number, because it can be changed into a prime (12604373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12750 + ... + 13702.

Almost surely, 2^12604378 is an apocalyptic number.

12604378 is a deficient number, since it is larger than the sum of its proper divisors (7486862).

12604378 is a wasteful number, since it uses less digits than its factorization.

12604378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 12604378 is about 3550.2644971889. The cubic root of 12604378 is about 232.7236249780.

Adding to 12604378 its reverse (87340621), we get a palindrome (99944999).

The spelling of 12604378 in words is "twelve million, six hundred four thousand, three hundred seventy-eight".