244528221 has 32 divisors (see below), whose sum is σ = 397267200. Its totient is φ = 130599936.

The previous prime is 244528201. The next prime is 244528237. The reversal of 244528221 is 122825442.

It is not a de Polignac number, because 244528221 - 2¹⁴ = 244511837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244528201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50895 + ... + 55491.

It is an arithmetic number, because the mean of its divisors is an integer number (12414600).

Almost surely, 2^244528221 is an apocalyptic number.

244528221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

244528221 is a deficient number, since it is larger than the sum of its proper divisors (152738979).

244528221 is a wasteful number, since it uses less digits than its factorization.

244528221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4773.

The product of its digits is 10240, while the sum is 30.

The square root of 244528221 is about 15637.3981531456. The cubic root of 244528221 is about 625.3305737095.

The spelling of 244528221 in words is "two hundred forty-four million, five hundred twenty-eight thousand, two hundred twenty-one".