47742842 has 8 divisors (see below), whose sum is σ = 81844896. Its totient is φ = 20461212.

The previous prime is 47742833. The next prime is 47742887. The reversal of 47742842 is 24824774.

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

It is a junction number, because it is equal to n+sod(n) for n = 47742796 and 47742805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1705088 + ... + 1705115.

It is an arithmetic number, because the mean of its divisors is an integer number (10230612).

Almost surely, 2^47742842 is an apocalyptic number.

47742842 is a deficient number, since it is larger than the sum of its proper divisors (34102054).

47742842 is a wasteful number, since it uses less digits than its factorization.

47742842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3410212.

The product of its digits is 100352, while the sum is 38.

The square root of 47742842 is about 6909.6195264284. The cubic root of 47742842 is about 362.7739462325.

It can be divided in two parts, 47742 and 842, that added together give a palindrome (48584).

The spelling of 47742842 in words is "forty-seven million, seven hundred forty-two thousand, eight hundred forty-two".