3221742 has 16 divisors (see below), whose sum is σ = 6491520. Its totient is φ = 1065912.

The previous prime is 3221731. The next prime is 3221747. The reversal of 3221742 is 2471223.

3221742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221747) 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 7 ways as a sum of consecutive naturals, for example, 1098 + ... + 2765.

It is an arithmetic number, because the mean of its divisors is an integer number (405720).

Almost surely, 2^3221742 is an apocalyptic number.

3221742 is an abundant number, since it is smaller than the sum of its proper divisors (3269778).

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

3221742 is a wasteful number, since it uses less digits than its factorization.

3221742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4007.

The product of its digits is 672, while the sum is 21.

The square root of 3221742 is about 1794.9211681854. The cubic root of 3221742 is about 147.6942494820.

Adding to 3221742 its reverse (2471223), we get a palindrome (5692965).

The spelling of 3221742 in words is "three million, two hundred twenty-one thousand, seven hundred forty-two".