47284224 has 128 divisors (see below), whose sum is σ = 139458480. Its totient is φ = 14155776.

The previous prime is 47284201. The next prime is 47284229. The reversal of 47284224 is 42248274.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47284229) 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, 1277934 + ... + 1277970.

Almost surely, 2^47284224 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 47284224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69729240).

47284224 is an abundant number, since it is smaller than the sum of its proper divisors (92174256).

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

47284224 is an equidigital number, since it uses as much as digits as its factorization.

47284224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 55 counting only the distinct ones).

The product of its digits is 28672, while the sum is 33.

The square root of 47284224 is about 6876.3525215044. The cubic root of 47284224 is about 361.6086039668.

The spelling of 47284224 in words is "forty-seven million, two hundred eighty-four thousand, two hundred twenty-four".