4032021 has 16 divisors (see below), whose sum is σ = 6208128. Its totient is φ = 2280000.

The previous prime is 4031987. The next prime is 4032029. The reversal of 4032021 is 1202304.

4032021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4032021 - 2⁷ = 4031893 is a prime.

4032021 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4031988 and 4032006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4032029) 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 15 ways as a sum of consecutive naturals, for example, 1171 + ... + 3071.

It is an arithmetic number, because the mean of its divisors is an integer number (388008).

Almost surely, 2^4032021 is an apocalyptic number.

It is an amenable number.

4032021 is a deficient number, since it is larger than the sum of its proper divisors (2176107).

4032021 is a wasteful number, since it uses less digits than its factorization.

4032021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 4032021 is about 2007.9892928001. The cubic root of 4032021 is about 159.1625646388.

Adding to 4032021 its reverse (1202304), we get a palindrome (5234325).

The spelling of 4032021 in words is "four million, thirty-two thousand, twenty-one".