47218848 has 48 divisors (see below), whose sum is σ = 124540416. Its totient is φ = 15664640.

The previous prime is 47218841. The next prime is 47218883. The reversal of 47218848 is 84881274.

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

It is not an unprimeable number, because it can be changed into a prime (47218841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21313 + ... + 23423.

It is an arithmetic number, because the mean of its divisors is an integer number (2594592).

Almost surely, 2^47218848 is an apocalyptic number.

47218848 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 47218848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62270208).

47218848 is an abundant number, since it is smaller than the sum of its proper divisors (77321568).

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

47218848 is a wasteful number, since it uses less digits than its factorization.

47218848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357 (or 2349 counting only the distinct ones).

The product of its digits is 114688, while the sum is 42.

The square root of 47218848 is about 6871.5971942482. The cubic root of 47218848 is about 361.4418716282.

The spelling of 47218848 in words is "forty-seven million, two hundred eighteen thousand, eight hundred forty-eight".