3216642 has 64 divisors (see below), whose sum is σ = 7934976. Its totient is φ = 855360.

The previous prime is 3216637. The next prime is 3216649. The reversal of 3216642 is 2466123.

It is not an unprimeable number, because it can be changed into a prime (3216649) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 19653 + ... + 19815.

It is an arithmetic number, because the mean of its divisors is an integer number (123984).

Almost surely, 2^3216642 is an apocalyptic number.

It is a pronic number, being equal to 1793×1794.

It is a practical number, because each smaller number is the sum of distinct divisors of 3216642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3967488).

3216642 is an abundant number, since it is smaller than the sum of its proper divisors (4718334).

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

3216642 is a wasteful number, since it uses less digits than its factorization.

3216642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215.

The product of its digits is 1728, while the sum is 24.

The square root of 3216642 is about 1793.4999303039. The cubic root of 3216642 is about 147.6162752597.

The spelling of 3216642 in words is "three million, two hundred sixteen thousand, six hundred forty-two".