2578212 has 72 divisors (see below), whose sum is σ = 8031296. Its totient is φ = 679104.

The previous prime is 2578207. The next prime is 2578217. The reversal of 2578212 is 2128752.

2578212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2578207) and next prime (2578217).

It is not an unprimeable number, because it can be changed into a prime (2578217) 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 23 ways as a sum of consecutive naturals, for example, 2883 + ... + 3669.

2^2578212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2578212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4015648).

2578212 is an abundant number, since it is smaller than the sum of its proper divisors (5453084).

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

2578212 is a wasteful number, since it uses less digits than its factorization.

2578212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817 (or 812 counting only the distinct ones).

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

The square root of 2578212 is about 1605.6811638678. The cubic root of 2578212 is about 137.1217061876.

The spelling of 2578212 in words is "two million, five hundred seventy-eight thousand, two hundred twelve".