4048221 has 4 divisors (see below), whose sum is σ = 5397632. Its totient is φ = 2698812.

The previous prime is 4048211. The next prime is 4048223. The reversal of 4048221 is 1228404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4048221 - 2⁵ = 4048189 is a prime.

It is a D-number.

It is a Duffinian number.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674701 + ... + 674706.

It is an arithmetic number, because the mean of its divisors is an integer number (1349408).

Almost surely, 2^4048221 is an apocalyptic number.

It is an amenable number.

4048221 is a deficient number, since it is larger than the sum of its proper divisors (1349411).

4048221 is a wasteful number, since it uses less digits than its factorization.

4048221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349410.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 4048221 is about 2012.0191350979. The cubic root of 4048221 is about 159.3754428285.

The spelling of 4048221 in words is "four million, forty-eight thousand, two hundred twenty-one".