12578202 has 72 divisors (see below), whose sum is σ = 34171956. Its totient is φ = 3314304.

The previous prime is 12578201. The next prime is 12578239. The reversal of 12578202 is 20287521.

It can be written as a sum of positive squares in 2 ways, for example, as 11431161 + 1147041 = 3381^2 + 1071^2 .

It is a super-2 number, since 2×12578202² = 316422331105608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12578201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10918 + ... + 12014.

Almost surely, 2^12578202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12578202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17085978).

12578202 is an abundant number, since it is smaller than the sum of its proper divisors (21593754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12578202 is a wasteful number, since it uses less digits than its factorization.

12578202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 12578202 is about 3546.5760953348. The cubic root of 12578202 is about 232.5624112715.

The spelling of 12578202 in words is "twelve million, five hundred seventy-eight thousand, two hundred two".