4048220 has 24 divisors (see below), whose sum is σ = 9274608. Its totient is φ = 1472000.

The previous prime is 4048211. The next prime is 4048223. The reversal of 4048220 is 228404.

Added to its reverse (228404) it gives a square (4276624 = 2068²).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4048192 and 4048201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4048223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8981 + ... + 9420.

It is an arithmetic number, because the mean of its divisors is an integer number (386442).

Almost surely, 2^4048220 is an apocalyptic number.

It is an amenable number.

4048220 is an abundant number, since it is smaller than the sum of its proper divisors (5226388).

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

4048220 is a wasteful number, since it uses less digits than its factorization.

4048220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18421 (or 18419 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 4048220 is about 2012.0188865913. The cubic root of 4048220 is about 159.3754297054.

Adding to 4048220 its reverse (228404), we get a square (4276624 = 2068²).

The spelling of 4048220 in words is "four million, forty-eight thousand, two hundred twenty".