242944581 has 8 divisors (see below), whose sum is σ = 353373984. Its totient is φ = 147239120.

The previous prime is 242944567. The next prime is 242944619. The reversal of 242944581 is 185449242.

242944581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 242944581 - 2⁵ = 242944549 is a prime.

It is a super-2 number, since 2×242944581² = 118044138874531122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242944381) 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, 3680946 + ... + 3681011.

It is an arithmetic number, because the mean of its divisors is an integer number (44171748).

Almost surely, 2^242944581 is an apocalyptic number.

It is an amenable number.

242944581 is a deficient number, since it is larger than the sum of its proper divisors (110429403).

242944581 is a wasteful number, since it uses less digits than its factorization.

242944581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7361971.

The product of its digits is 92160, while the sum is 39.

The square root of 242944581 is about 15586.6796015059. The cubic root of 242944581 is about 623.9777045576.

The spelling of 242944581 in words is "two hundred forty-two million, nine hundred forty-four thousand, five hundred eighty-one".