4038221 has 8 divisors (see below), whose sum is σ = 4557600. Its totient is φ = 3544240.

The previous prime is 4038211. The next prime is 4038239. The reversal of 4038221 is 1228304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4038221 - 2¹⁰ = 4037197 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4038193 and 4038202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4038211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6011 + ... + 6648.

It is an arithmetic number, because the mean of its divisors is an integer number (569700).

Almost surely, 2^4038221 is an apocalyptic number.

It is an amenable number.

4038221 is a deficient number, since it is larger than the sum of its proper divisors (519379).

4038221 is a wasteful number, since it uses less digits than its factorization.

4038221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12699.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4038221 is about 2009.5325327051. The cubic root of 4038221 is about 159.2441037752.

The spelling of 4038221 in words is "four million, thirty-eight thousand, two hundred twenty-one".