244004023 has 4 divisors (see below), whose sum is σ = 256846360. Its totient is φ = 231161688.

The previous prime is 244003979. The next prime is 244004027. The reversal of 244004023 is 320400442.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244004023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 12842317 = 244004023 / (2 + 4 + 4 + 0 + 0 + 4 + 0 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244004027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6421140 + ... + 6421177.

It is an arithmetic number, because the mean of its divisors is an integer number (64211590).

Almost surely, 2^244004023 is an apocalyptic number.

244004023 is a deficient number, since it is larger than the sum of its proper divisors (12842337).

244004023 is a wasteful number, since it uses less digits than its factorization.

244004023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12842336.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 244004023 is about 15620.6281243745. The cubic root of 244004023 is about 624.8834112126.

Adding to 244004023 its reverse (320400442), we get a palindrome (564404465).

The spelling of 244004023 in words is "two hundred forty-four million, four thousand, twenty-three".