242762391 has 12 divisors (see below), whose sum is σ = 358812168. Its totient is φ = 158077584.

The previous prime is 242762381. The next prime is 242762407. The reversal of 242762391 is 193267242.

242762391 is a `hidden beast` number, since 2 + 4 + 27 + 623 + 9 + 1 = 666.

242762391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242762391 - 2⁶ = 242762327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242762381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 313260 + ... + 314033.

It is an arithmetic number, because the mean of its divisors is an integer number (29901014).

Almost surely, 2^242762391 is an apocalyptic number.

242762391 is a deficient number, since it is larger than the sum of its proper divisors (116049777).

242762391 is a wasteful number, since it uses less digits than its factorization.

242762391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627342 (or 627339 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 242762391 is about 15580.8340919220. The cubic root of 242762391 is about 623.8216869079.

The spelling of 242762391 in words is "two hundred forty-two million, seven hundred sixty-two thousand, three hundred ninety-one".