4044020 has 12 divisors (see below), whose sum is σ = 8492484. Its totient is φ = 1617600.

The previous prime is 4044013. The next prime is 4044023. The reversal of 4044020 is 204404.

It can be written as a sum of positive squares in 2 ways, for example, as 753424 + 3290596 = 868^2 + 1814^2 .

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 4043986 and 4044004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4044023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101081 + ... + 101120.

It is an arithmetic number, because the mean of its divisors is an integer number (707707).

Almost surely, 2^4044020 is an apocalyptic number.

It is an amenable number.

4044020 is an abundant number, since it is smaller than the sum of its proper divisors (4448464).

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

4044020 is a wasteful number, since it uses less digits than its factorization.

4044020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202210 (or 202208 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 4044020 is about 2010.9748879586. The cubic root of 4044020 is about 159.3202936678.

Adding to 4044020 its reverse (204404), we get a palindrome (4248424).

The spelling of 4044020 in words is "four million, forty-four thousand, twenty".