242257668 has 24 divisors (see below), whose sum is σ = 565602240. Its totient is φ = 80704800.

The previous prime is 242257607. The next prime is 242257711. The reversal of 242257668 is 866752242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19518 + ... + 29418.

It is an arithmetic number, because the mean of its divisors is an integer number (23566760).

Almost surely, 2^242257668 is an apocalyptic number.

It is an amenable number.

242257668 is an abundant number, since it is smaller than the sum of its proper divisors (323344572).

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

242257668 is a wasteful number, since it uses less digits than its factorization.

242257668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11947 (or 11945 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The square root of 242257668 is about 15564.6287459740. The cubic root of 242257668 is about 623.3890613970.

The spelling of 242257668 in words is "two hundred forty-two million, two hundred fifty-seven thousand, six hundred sixty-eight".