242561506 has 16 divisors (see below), whose sum is σ = 400435488. Its totient is φ = 109278400.

The previous prime is 242561497. The next prime is 242561509. The reversal of 242561506 is 605165242.

It is not an unprimeable number, because it can be changed into a prime (242561509) 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, 46300 + ... + 51271.

It is an arithmetic number, because the mean of its divisors is an integer number (25027218).

Almost surely, 2^242561506 is an apocalyptic number.

242561506 is a deficient number, since it is larger than the sum of its proper divisors (157873982).

242561506 is a wasteful number, since it uses less digits than its factorization.

242561506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97697.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 242561506 is about 15574.3862158353. The cubic root of 242561506 is about 623.6495693609.

The spelling of 242561506 in words is "two hundred forty-two million, five hundred sixty-one thousand, five hundred six".