242405761 has 8 divisors (see below), whose sum is σ = 261192960. Its totient is φ = 223638672.

The previous prime is 242405719. The next prime is 242405767. The reversal of 242405761 is 167504242.

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 242405761 - 2⁷ = 242405633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242405767) 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 7 ways as a sum of consecutive naturals, for example, 28176 + ... + 35758.

It is an arithmetic number, because the mean of its divisors is an integer number (32649120).

Almost surely, 2^242405761 is an apocalyptic number.

It is an amenable number.

242405761 is a deficient number, since it is larger than the sum of its proper divisors (18787199).

242405761 is a wasteful number, since it uses less digits than its factorization.

242405761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10055.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 242405761 is about 15569.3853764367. The cubic root of 242405761 is about 623.5160621942.

The spelling of 242405761 in words is "two hundred forty-two million, four hundred five thousand, seven hundred sixty-one".