47842118 has 4 divisors (see below), whose sum is σ = 71763180. Its totient is φ = 23921058.

The previous prime is 47842061. The next prime is 47842127. The reversal of 47842118 is 81124874.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11960528 + ... + 11960531.

It is an arithmetic number, because the mean of its divisors is an integer number (17940795).

Almost surely, 2^47842118 is an apocalyptic number.

47842118 is a deficient number, since it is larger than the sum of its proper divisors (23921062).

47842118 is a wasteful number, since it uses less digits than its factorization.

47842118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23921061.

The product of its digits is 14336, while the sum is 35.

The square root of 47842118 is about 6916.7996934999. The cubic root of 47842118 is about 363.0252216815.

The spelling of 47842118 in words is "forty-seven million, eight hundred forty-two thousand, one hundred eighteen".