244021001 has 16 divisors (see below), whose sum is σ = 288604800. Its totient is φ = 201979008.

The previous prime is 244020989. The next prime is 244021049. The reversal of 244021001 is 100120442.

It is not a de Polignac number, because 244021001 - 2²⁶ = 176912137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244021301) 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, 22235 + ... + 31343.

It is an arithmetic number, because the mean of its divisors is an integer number (18037800).

Almost surely, 2^244021001 is an apocalyptic number.

It is an amenable number.

244021001 is a deficient number, since it is larger than the sum of its proper divisors (44583799).

244021001 is an equidigital number, since it uses as much as digits as its factorization.

244021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9248.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 244021001 is about 15621.1715629782. The cubic root of 244021001 is about 624.8979041765.

Adding to 244021001 its reverse (100120442), we get a palindrome (344141443).

The spelling of 244021001 in words is "two hundred forty-four million, twenty-one thousand, one".