47418388 has 12 divisors (see below), whose sum is σ = 83118112. Its totient is φ = 23670360.

The previous prime is 47418383. The next prime is 47418401. The reversal of 47418388 is 88381474.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47418383) 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, 6870 + ... + 11917.

Almost surely, 2^47418388 is an apocalyptic number.

It is an amenable number.

47418388 is a deficient number, since it is larger than the sum of its proper divisors (35699724).

47418388 is a wasteful number, since it uses less digits than its factorization.

47418388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19422 (or 19420 counting only the distinct ones).

The product of its digits is 172032, while the sum is 43.

The square root of 47418388 is about 6886.1010739024. The cubic root of 47418388 is about 361.9502897665.

The spelling of 47418388 in words is "forty-seven million, four hundred eighteen thousand, three hundred eighty-eight".