47018128 has 20 divisors (see below), whose sum is σ = 91561600. Its totient is φ = 23389344.

The previous prime is 47018123. The next prime is 47018143. The reversal of 47018128 is 82181074.

It is a self number, because there is not a number n which added to its sum of digits gives 47018128.

It is not an unprimeable number, because it can be changed into a prime (47018123) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 4200 + ... + 10567.

It is an arithmetic number, because the mean of its divisors is an integer number (4578080).

Almost surely, 2^47018128 is an apocalyptic number.

It is an amenable number.

47018128 is a deficient number, since it is larger than the sum of its proper divisors (44543472).

47018128 is a wasteful number, since it uses less digits than its factorization.

47018128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14974 (or 14968 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 47018128 is about 6856.9765932224. The cubic root of 47018128 is about 360.9289997798.

The spelling of 47018128 in words is "forty-seven million, eighteen thousand, one hundred twenty-eight".