244542261 has 8 divisors (see below), whose sum is σ = 326130624. Its totient is φ = 162991040.

The previous prime is 244542257. The next prime is 244542271. The reversal of 244542261 is 162245442.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 244542261 - 2² = 244542257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244542271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15640 + ... + 27086.

It is an arithmetic number, because the mean of its divisors is an integer number (40766328).

Almost surely, 2^244542261 is an apocalyptic number.

It is an amenable number.

244542261 is a deficient number, since it is larger than the sum of its proper divisors (81588363).

244542261 is a wasteful number, since it uses less digits than its factorization.

244542261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18571.

The product of its digits is 15360, while the sum is 30.

The square root of 244542261 is about 15637.8470704890. The cubic root of 244542261 is about 625.3425416168.

The spelling of 244542261 in words is "two hundred forty-four million, five hundred forty-two thousand, two hundred sixty-one".