12533378 has 24 divisors (see below), whose sum is σ = 22214736. Its totient is φ = 5257200.

The previous prime is 12533377. The next prime is 12533441. The reversal of 12533378 is 87333521.

It is not an unprimeable number, because it can be changed into a prime (12533371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2033 + ... + 5403.

It is an arithmetic number, because the mean of its divisors is an integer number (925614).

Almost surely, 2^12533378 is an apocalyptic number.

12533378 is a deficient number, since it is larger than the sum of its proper divisors (9681358).

12533378 is a wasteful number, since it uses less digits than its factorization.

12533378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3410 (or 3397 counting only the distinct ones).

The product of its digits is 15120, while the sum is 32.

The square root of 12533378 is about 3540.2511210365. The cubic root of 12533378 is about 232.2858273592.

Adding to 12533378 its reverse (87333521), we get a palindrome (99866899).

The spelling of 12533378 in words is "twelve million, five hundred thirty-three thousand, three hundred seventy-eight".