244240481 has 4 divisors (see below), whose sum is σ = 244272132. Its totient is φ = 244208832.

The previous prime is 244240463. The next prime is 244240489. The reversal of 244240481 is 184042442.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 64144081 + 180096400 = 8009^2 + 13420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244240481 is a prime.

It is a super-2 number, since 2×244240481² = 119306825118222722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (244240489) 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 3 ways as a sum of consecutive naturals, for example, 4181 + ... + 22493.

It is an arithmetic number, because the mean of its divisors is an integer number (61068033).

Almost surely, 2^244240481 is an apocalyptic number.

It is an amenable number.

244240481 is a deficient number, since it is larger than the sum of its proper divisors (31651).

244240481 is a wasteful number, since it uses less digits than its factorization.

244240481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31650.

The product of its (nonzero) digits is 8192, while the sum is 29.

The square root of 244240481 is about 15628.1950653298. The cubic root of 244240481 is about 625.0851988387.

The spelling of 244240481 in words is "two hundred forty-four million, two hundred forty thousand, four hundred eighty-one".