10438221 has 16 divisors (see below), whose sum is σ = 14990400. Its totient is φ = 6436608.

The previous prime is 10438217. The next prime is 10438223. The reversal of 10438221 is 12283401.

It is not a de Polignac number, because 10438221 - 2² = 10438217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10438223) 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 15 ways as a sum of consecutive naturals, for example, 1275 + ... + 4743.

It is an arithmetic number, because the mean of its divisors is an integer number (936900).

Almost surely, 2^10438221 is an apocalyptic number.

It is an amenable number.

10438221 is a deficient number, since it is larger than the sum of its proper divisors (4552179).

10438221 is a wasteful number, since it uses less digits than its factorization.

10438221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3548.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 10438221 is about 3230.8235792132. The cubic root of 10438221 is about 218.5456479604.

The spelling of 10438221 in words is "ten million, four hundred thirty-eight thousand, two hundred twenty-one".