242277642 has 40 divisors (see below), whose sum is σ = 574822116. Its totient is φ = 76007808.

The previous prime is 242277613. The next prime is 242277647. The reversal of 242277642 is 246772242.

242277642 is a `hidden beast` number, since 2 + 4 + 2 + 2 + 7 + 7 + 642 = 666.

242277642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 239909121 + 2368521 = 15489^2 + 1539^2 .

It is a junction number, because it is equal to n+sod(n) for n = 242277597 and 242277606.

It is not an unprimeable number, because it can be changed into a prime (242277647) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 41233 + ... + 46740.

Almost surely, 2^242277642 is an apocalyptic number.

242277642 is an abundant number, since it is smaller than the sum of its proper divisors (332544474).

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

242277642 is a wasteful number, since it uses less digits than its factorization.

242277642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88004 (or 87995 counting only the distinct ones).

The product of its digits is 75264, while the sum is 36.

The square root of 242277642 is about 15565.2703799195. The cubic root of 242277642 is about 623.4061936114.

The spelling of 242277642 in words is "two hundred forty-two million, two hundred seventy-seven thousand, six hundred forty-two".