247423042 has 8 divisors (see below), whose sum is σ = 371254716. Its totient is φ = 123671472.

The previous prime is 247423039. The next prime is 247423063. The reversal of 247423042 is 240324742.

247423042 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 154281241 + 93141801 = 12421^2 + 9651^2 .

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

It is a super-2 number, since 2×247423042² = 122436323425067528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247423042.

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, 11593 + ... + 25084.

Almost surely, 2^247423042 is an apocalyptic number.

247423042 is a deficient number, since it is larger than the sum of its proper divisors (123831674).

247423042 is a wasteful number, since it uses less digits than its factorization.

247423042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40052.

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 247423042 is about 15729.6866465928. The cubic root of 247423042 is about 627.7885358453.

Adding to 247423042 its reverse (240324742), we get a palindrome (487747784).

The spelling of 247423042 in words is "two hundred forty-seven million, four hundred twenty-three thousand, forty-two".