47481888 has 48 divisors (see below), whose sum is σ = 125949600. Its totient is φ = 15661056.

The previous prime is 47481887. The next prime is 47481899. The reversal of 47481888 is 88818474.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (47481883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6763 + ... + 11861.

It is an arithmetic number, because the mean of its divisors is an integer number (2623950).

Almost surely, 2^47481888 is an apocalyptic number.

47481888 is a gapful number since it is divisible by the number (48) 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 47481888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62974800).

47481888 is an abundant number, since it is smaller than the sum of its proper divisors (78467712).

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

47481888 is a wasteful number, since it uses less digits than its factorization.

47481888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5209 (or 5201 counting only the distinct ones).

The product of its digits is 458752, while the sum is 48.

The square root of 47481888 is about 6890.7102681799. The cubic root of 47481888 is about 362.1117854257. Note that the first 3 decimals are identical.

The spelling of 47481888 in words is "forty-seven million, four hundred eighty-one thousand, eight hundred eighty-eight".