4032020 has 18 divisors (see below), whose sum is σ = 8486142. Its totient is φ = 1609216.

The previous prime is 4031987. The next prime is 4032029. The reversal of 4032020 is 202304.

It can be written as a sum of positive squares in 3 ways, for example, as 712336 + 3319684 = 844^2 + 1822^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4031992 and 4032010.

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 polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8756 + ... + 9204.

Almost surely, 2^4032020 is an apocalyptic number.

It is an amenable number.

4032020 is an abundant number, since it is smaller than the sum of its proper divisors (4454122).

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

4032020 is an equidigital number, since it uses as much as digits as its factorization.

4032020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 4032020 is about 2007.9890437948. The cubic root of 4032020 is about 159.1625514806.

Adding to 4032020 its reverse (202304), we get a palindrome (4234324).

It can be divided in two parts, 40 and 32020, that multiplied together give a triangular number (1280800 = T₁₆₀₀).

The spelling of 4032020 in words is "four million, thirty-two thousand, twenty".