47188988 has 48 divisors (see below), whose sum is σ = 103488000. Its totient is φ = 18290880.

The previous prime is 47188969. The next prime is 47188997. The reversal of 47188988 is 88988174.

47188988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 107273 + ... + 107711.

It is an arithmetic number, because the mean of its divisors is an integer number (2156000).

Almost surely, 2^47188988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47188988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51744000).

47188988 is an abundant number, since it is smaller than the sum of its proper divisors (56299012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47188988 is a wasteful number, since it uses less digits than its factorization.

47188988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810 (or 808 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 53.

The square root of 47188988 is about 6869.4241388926. The cubic root of 47188988 is about 361.3656666766.

The spelling of 47188988 in words is "forty-seven million, one hundred eighty-eight thousand, nine hundred eighty-eight".