244240991 has 16 divisors (see below), whose sum is σ = 261942240. Its totient is φ = 227059200.

The previous prime is 244240967. The next prime is 244241021. The reversal of 244240991 is 199042442.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-244240991 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 (244240951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406091 + ... + 406691.

It is an arithmetic number, because the mean of its divisors is an integer number (16371390).

Almost surely, 2^244240991 is an apocalyptic number.

244240991 is a deficient number, since it is larger than the sum of its proper divisors (17701249).

244240991 is a wasteful number, since it uses less digits than its factorization.

244240991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 244240991 is about 15628.2113819848. The cubic root of 244240991 is about 625.0856339197.

The spelling of 244240991 in words is "two hundred forty-four million, two hundred forty thousand, nine hundred ninety-one".