3215436 has 48 divisors (see below), whose sum is σ = 8682240. Its totient is φ = 907200.

The previous prime is 3215417. The next prime is 3215447. The reversal of 3215436 is 6345123.

It is a happy number.

It is a d-powerful number, because it can be written as 3⁵ + 2²¹ + 1 + 5⁵ + 4¹⁰ + 3⁹ + 6⁶ .

It is a nialpdrome in base 13.

It is a zygodrome in base 13.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8295 + ... + 8673.

It is an arithmetic number, because the mean of its divisors is an integer number (180880).

Almost surely, 2^3215436 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 3215436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4341120).

3215436 is an abundant number, since it is smaller than the sum of its proper divisors (5466804).

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

3215436 is a wasteful number, since it uses less digits than its factorization.

3215436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 492 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 3215436 is about 1793.1636846646. The cubic root of 3215436 is about 147.5978246020.

The spelling of 3215436 in words is "three million, two hundred fifteen thousand, four hundred thirty-six".