242646705 has 64 divisors (see below), whose sum is σ = 494968320. Its totient is φ = 110481408.

The previous prime is 242646647. The next prime is 242646707. The reversal of 242646705 is 507646242.

242646705 is a `hidden beast` number, since 2 + 4 + 2 + 646 + 7 + 0 + 5 = 666.

It is not a de Polignac number, because 242646705 - 2⁷ = 242646577 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242646705.

It is not an unprimeable number, because it can be changed into a prime (242646707) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 408889 + ... + 409481.

It is an arithmetic number, because the mean of its divisors is an integer number (7733880).

Almost surely, 2^242646705 is an apocalyptic number.

It is an amenable number.

242646705 is an abundant number, since it is smaller than the sum of its proper divisors (252321615).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242646705 is a wasteful number, since it uses less digits than its factorization.

242646705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047 (or 1041 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 242646705 is about 15577.1212038682. The cubic root of 242646705 is about 623.7225791590.

The spelling of 242646705 in words is "two hundred forty-two million, six hundred forty-six thousand, seven hundred five".