47418818 has 8 divisors (see below), whose sum is σ = 71237820. Its totient is φ = 23672880.

The previous prime is 47418757. The next prime is 47418853. The reversal of 47418818 is 81881474.

47418818 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 40538689 + 6880129 = 6367^2 + 2623^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16613 + ... + 19256.

Almost surely, 2^47418818 is an apocalyptic number.

47418818 is a deficient number, since it is larger than the sum of its proper divisors (23819002).

47418818 is a wasteful number, since it uses less digits than its factorization.

47418818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36532.

The product of its digits is 57344, while the sum is 41.

The square root of 47418818 is about 6886.1322961442. The cubic root of 47418818 is about 361.9513838439.

The spelling of 47418818 in words is "forty-seven million, four hundred eighteen thousand, eight hundred eighteen".