242047947 has 8 divisors (see below), whose sum is σ = 322937856. Its totient is φ = 161261672.

The previous prime is 242047937. The next prime is 242047961. The reversal of 242047947 is 749740242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242047947 - 2⁴ = 242047931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242047937) 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, 20283 + ... + 29924.

It is an arithmetic number, because the mean of its divisors is an integer number (40367232).

Almost surely, 2^242047947 is an apocalyptic number.

242047947 is a deficient number, since it is larger than the sum of its proper divisors (80889909).

242047947 is a wasteful number, since it uses less digits than its factorization.

242047947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51817.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 242047947 is about 15557.8901847262. The cubic root of 242047947 is about 623.2091214143.

The spelling of 242047947 in words is "two hundred forty-two million, forty-seven thousand, nine hundred forty-seven".