47898240 has 256 divisors, whose sum is σ = 174787200. Its totient is φ = 11059200.

The previous prime is 47898223. The next prime is 47898241. The reversal of 47898240 is 4289874.

47898240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 47898192 and 47898201.

It is not an unprimeable number, because it can be changed into a prime (47898241) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 474190 + ... + 474290.

Almost surely, 2^47898240 is an apocalyptic number.

47898240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47898240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87393600).

47898240 is an abundant number, since it is smaller than the sum of its proper divisors (126888960).

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

47898240 is a wasteful number, since it uses less digits than its factorization.

47898240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 47898240 is about 6920.8554384556. The cubic root of 47898240 is about 363.1671171560.

The spelling of 47898240 in words is "forty-seven million, eight hundred ninety-eight thousand, two hundred forty".