244221901 has 16 divisors (see below), whose sum is σ = 309035520. Its totient is φ = 187458480.

The previous prime is 244221899. The next prime is 244221907. The reversal of 244221901 is 109122442.

It is not a de Polignac number, because 244221901 - 2¹ = 244221899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244221907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18511 + ... + 28828.

It is an arithmetic number, because the mean of its divisors is an integer number (19314720).

Almost surely, 2^244221901 is an apocalyptic number.

It is an amenable number.

244221901 is a deficient number, since it is larger than the sum of its proper divisors (64813619).

244221901 is a wasteful number, since it uses less digits than its factorization.

244221901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47424.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 244221901 is about 15627.6006155776. The cubic root of 244221901 is about 625.0693478251.

The spelling of 244221901 in words is "two hundred forty-four million, two hundred twenty-one thousand, nine hundred one".