242905507 has 8 divisors (see below), whose sum is σ = 272964384. Its totient is φ = 214471488.

The previous prime is 242905483. The next prime is 242905511. The reversal of 242905507 is 705509242.

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 242905507 - 2²³ = 234516899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242905517) 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, 405898 + ... + 406495.

It is an arithmetic number, because the mean of its divisors is an integer number (34120548).

Almost surely, 2^242905507 is an apocalyptic number.

242905507 is a deficient number, since it is larger than the sum of its proper divisors (30058877).

242905507 is a wasteful number, since it uses less digits than its factorization.

242905507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812429.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 242905507 is about 15585.4261090289. The cubic root of 242905507 is about 623.9442502722.

The spelling of 242905507 in words is "two hundred forty-two million, nine hundred five thousand, five hundred seven".