244938021 has 8 divisors (see below), whose sum is σ = 326887200. Its totient is φ = 163140432.

The previous prime is 244938013. The next prime is 244938047. The reversal of 244938021 is 120839442.

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

It is not a de Polignac number, because 244938021 - 2³ = 244938013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244938121) 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, 34071 + ... + 40628.

It is an arithmetic number, because the mean of its divisors is an integer number (40860900).

Almost surely, 2^244938021 is an apocalyptic number.

It is an amenable number.

244938021 is a deficient number, since it is larger than the sum of its proper divisors (81949179).

244938021 is a wasteful number, since it uses less digits than its factorization.

244938021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75795.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 244938021 is about 15650.4958707384. The cubic root of 244938021 is about 625.6797051202.

It can be divided in two parts, 2449 and 38021, that added together give a triangular number (40470 = T₂₈₄).

The spelling of 244938021 in words is "two hundred forty-four million, nine hundred thirty-eight thousand, twenty-one".