47188020 has 192 divisors, whose sum is σ = 156764160. Its totient is φ = 10483200.

The previous prime is 47188013. The next prime is 47188051. The reversal of 47188020 is 2088174.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 664585 + ... + 664655.

It is an arithmetic number, because the mean of its divisors is an integer number (816480).

Almost surely, 2^47188020 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 47188020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78382080).

47188020 is an abundant number, since it is smaller than the sum of its proper divisors (109576140).

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

47188020 is a wasteful number, since it uses less digits than its factorization.

47188020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 47188020 is about 6869.3536813881. The cubic root of 47188020 is about 361.3631957304.

The spelling of 47188020 in words is "forty-seven million, one hundred eighty-eight thousand, twenty".