242761660 has 24 divisors (see below), whose sum is σ = 521657136. Its totient is φ = 94846080.

The previous prime is 242761633. The next prime is 242761661. The reversal of 242761660 is 66167242.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242761661) 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, 140281 + ... + 142000.

It is an arithmetic number, because the mean of its divisors is an integer number (21735714).

Almost surely, 2^242761660 is an apocalyptic number.

242761660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242761660 is an abundant number, since it is smaller than the sum of its proper divisors (278895476).

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

242761660 is a wasteful number, since it uses less digits than its factorization.

242761660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282333 (or 282331 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 242761660 is about 15580.8106335967. The cubic root of 242761660 is about 623.8210607619.

The spelling of 242761660 in words is "two hundred forty-two million, seven hundred sixty-one thousand, six hundred sixty".