47118280 has 64 divisors (see below), whose sum is σ = 116510400. Its totient is φ = 17007360.

The previous prime is 47118259. The next prime is 47118287. The reversal of 47118280 is 8281174.

It is not an unprimeable number, because it can be changed into a prime (47118287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75811 + ... + 76429.

It is an arithmetic number, because the mean of its divisors is an integer number (1820475).

Almost surely, 2^47118280 is an apocalyptic number.

47118280 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 47118280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58255200).

47118280 is an abundant number, since it is smaller than the sum of its proper divisors (69392120).

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

47118280 is a wasteful number, since it uses less digits than its factorization.

47118280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 47118280 is about 6864.2756354913. The cubic root of 47118280 is about 361.1850862956.

The spelling of 47118280 in words is "forty-seven million, one hundred eighteen thousand, two hundred eighty".