4021602 has 32 divisors (see below), whose sum is σ = 8854272. Its totient is φ = 1209984.

The previous prime is 4021601. The next prime is 4021607. The reversal of 4021602 is 2061204.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4021601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3118 + ... + 4214.

It is an arithmetic number, because the mean of its divisors is an integer number (276696).

Almost surely, 2^4021602 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4021602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4427136).

4021602 is an abundant number, since it is smaller than the sum of its proper divisors (4832670).

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

4021602 is a wasteful number, since it uses less digits than its factorization.

4021602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 4021602 is about 2005.3932282722. The cubic root of 4021602 is about 159.0253509675.

Adding to 4021602 its reverse (2061204), we get a palindrome (6082806).

The spelling of 4021602 in words is "four million, twenty-one thousand, six hundred two".