242538860 has 12 divisors (see below), whose sum is σ = 509331648. Its totient is φ = 97015536.

The previous prime is 242538859. The next prime is 242538871. The reversal of 242538860 is 68835242.

It is a super-2 number, since 2×242538860² = 117650197220199200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6063452 + ... + 6063491.

It is an arithmetic number, because the mean of its divisors is an integer number (42444304).

Almost surely, 2^242538860 is an apocalyptic number.

242538860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242538860 is an abundant number, since it is smaller than the sum of its proper divisors (266792788).

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

242538860 is a wasteful number, since it uses less digits than its factorization.

242538860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12126952 (or 12126950 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 242538860 is about 15573.6591718196. The cubic root of 242538860 is about 623.6301603899.

The spelling of 242538860 in words is "two hundred forty-two million, five hundred thirty-eight thousand, eight hundred sixty".