4050020 has 48 divisors (see below), whose sum is σ = 9429168. Its totient is φ = 1451520.

The previous prime is 4050019. The next prime is 4050023. The reversal of 4050020 is 200504.

It can be written as a sum of positive squares in 8 ways, for example, as 605284 + 3444736 = 778^2 + 1856^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4049983 and 4050010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4050023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9410 + ... + 9830.

It is an arithmetic number, because the mean of its divisors is an integer number (196441).

Almost surely, 2^4050020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4050020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4714584).

4050020 is an abundant number, since it is smaller than the sum of its proper divisors (5379148).

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

4050020 is a wasteful number, since it uses less digits than its factorization.

4050020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 4050020 is about 2012.4661487836. The cubic root of 4050020 is about 159.3990477618.

Adding to 4050020 its reverse (200504), we get a palindrome (4250524).

It can be divided in two parts, 40500 and 20, that multiplied together give a 4-th power (810000 = 30⁴).

The spelling of 4050020 in words is "four million, fifty thousand, twenty".