3642220326 has 16 divisors (see below), whose sum is σ = 7290344304. Its totient is φ = 1213089504.

The previous prime is 3642220321. The next prime is 3642220327. The reversal of 3642220326 is 6230222463.

It is a junction number, because it is equal to n+sod(n) for n = 3642220293 and 3642220302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3642220321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237945 + ... + 252788.

It is an arithmetic number, because the mean of its divisors is an integer number (455646519).

Almost surely, 2^3642220326 is an apocalyptic number.

3642220326 is an abundant number, since it is smaller than the sum of its proper divisors (3648123978).

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

3642220326 is a wasteful number, since it uses less digits than its factorization.

3642220326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491975.

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 3642220326 is about 60350.8104833730. The cubic root of 3642220326 is about 1538.5870446471.

Adding to 3642220326 its reverse (6230222463), we get a palindrome (9872442789).

The spelling of 3642220326 in words is "three billion, six hundred forty-two million, two hundred twenty thousand, three hundred twenty-six".