244421901 has 8 divisors (see below), whose sum is σ = 362106560. Its totient is φ = 162947916.

The previous prime is 244421873. The next prime is 244421911. The reversal of 244421901 is 109124442.

It is a happy number.

244421901 is a `hidden beast` number, since 2 + 444 + 219 + 0 + 1 = 666.

It is not a de Polignac number, because 244421901 - 2⁹ = 244421389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 9052663 = 244421901 / (2 + 4 + 4 + 4 + 2 + 1 + 9 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244421911) 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 7 ways as a sum of consecutive naturals, for example, 4526305 + ... + 4526358.

It is an arithmetic number, because the mean of its divisors is an integer number (45263320).

Almost surely, 2^244421901 is an apocalyptic number.

It is an amenable number.

244421901 is a deficient number, since it is larger than the sum of its proper divisors (117684659).

244421901 is an equidigital number, since it uses as much as digits as its factorization.

244421901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9052672 (or 9052666 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 244421901 is about 15633.9982410131. The cubic root of 244421901 is about 625.2399300686.

The spelling of 244421901 in words is "two hundred forty-four million, four hundred twenty-one thousand, nine hundred one".