242730805 has 16 divisors (see below), whose sum is σ = 293932800. Its totient is φ = 192424000.

The previous prime is 242730797. The next prime is 242730809. The reversal of 242730805 is 508037242.

It is not a de Polignac number, because 242730805 - 2³ = 242730797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242730809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337236 + ... + 337954.

It is an arithmetic number, because the mean of its divisors is an integer number (18370800).

Almost surely, 2^242730805 is an apocalyptic number.

It is an amenable number.

242730805 is a deficient number, since it is larger than the sum of its proper divisors (51201995).

242730805 is a wasteful number, since it uses less digits than its factorization.

242730805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244.

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

The square root of 242730805 is about 15579.8204418408. The cubic root of 242730805 is about 623.7946304292.

The spelling of 242730805 in words is "two hundred forty-two million, seven hundred thirty thousand, eight hundred five".