3240636 has 48 divisors (see below), whose sum is σ = 8730624. Its totient is φ = 916416.

The previous prime is 3240619. The next prime is 3240649. The reversal of 3240636 is 6360423.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14421 + ... + 14643.

It is an arithmetic number, because the mean of its divisors is an integer number (181888).

Almost surely, 2^3240636 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 3240636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4365312).

3240636 is an abundant number, since it is smaller than the sum of its proper divisors (5489988).

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

3240636 is a wasteful number, since it uses less digits than its factorization.

3240636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 3240636 is about 1800.1766579978. The cubic root of 3240636 is about 147.9824059923.

The spelling of 3240636 in words is "three million, two hundred forty thousand, six hundred thirty-six".