4021332 has 48 divisors (see below), whose sum is σ = 10953600. Its totient is φ = 1147776.

The previous prime is 4021309. The next prime is 4021349. The reversal of 4021332 is 2331204.

It is a super-2 number, since 2×4021332² = 32342222108448, which contains 22 as substring.

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, 3628 + ... + 4604.

It is an arithmetic number, because the mean of its divisors is an integer number (228200).

Almost surely, 2^4021332 is an apocalyptic number.

4021332 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4021332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5476800).

4021332 is an abundant number, since it is smaller than the sum of its proper divisors (6932268).

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

4021332 is a wasteful number, since it uses less digits than its factorization.

4021332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005 (or 989 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 4021332 is about 2005.3259086742. The cubic root of 4021332 is about 159.0217920370.

Adding to 4021332 its reverse (2331204), we get a palindrome (6352536).

The spelling of 4021332 in words is "four million, twenty-one thousand, three hundred thirty-two".