242753665 has 16 divisors (see below), whose sum is σ = 363185280. Its totient is φ = 151326720.

The previous prime is 242753657. The next prime is 242753681. The reversal of 242753665 is 566357242.

It is not a de Polignac number, because 242753665 - 2³ = 242753657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314880 + ... + 315649.

It is an arithmetic number, because the mean of its divisors is an integer number (22699080).

Almost surely, 2^242753665 is an apocalyptic number.

It is an amenable number.

242753665 is a deficient number, since it is larger than the sum of its proper divisors (120431615).

242753665 is a wasteful number, since it uses less digits than its factorization.

242753665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630552.

The product of its digits is 302400, while the sum is 40.

The square root of 242753665 is about 15580.5540658861. The cubic root of 242753665 is about 623.8142124755.

The spelling of 242753665 in words is "two hundred forty-two million, seven hundred fifty-three thousand, six hundred sixty-five".