242726660 has 48 divisors (see below), whose sum is σ = 571112640. Its totient is φ = 85875840.

The previous prime is 242726657. The next prime is 242726677. The reversal of 242726660 is 66627242.

It is a self number, because there is not a number n which added to its sum of digits gives 242726660.

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, 6770 + ... + 23049.

It is an arithmetic number, because the mean of its divisors is an integer number (11898180).

Almost surely, 2^242726660 is an apocalyptic number.

242726660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242726660 is an abundant number, since it is smaller than the sum of its proper divisors (328385980).

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

242726660 is a wasteful number, since it uses less digits than its factorization.

242726660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29876 (or 29874 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 242726660 is about 15579.6874166332. The cubic root of 242726660 is about 623.7910796596.

The spelling of 242726660 in words is "two hundred forty-two million, seven hundred twenty-six thousand, six hundred sixty".