47180224 has 56 divisors (see below), whose sum is σ = 115242848. Its totient is φ = 18662400.

The previous prime is 47180213. The next prime is 47180251. The reversal of 47180224 is 42208174.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 47180192 and 47180201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1774 + ... + 9874.

It is an arithmetic number, because the mean of its divisors is an integer number (2057908).

Almost surely, 2^47180224 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 47180224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57621424).

47180224 is an abundant number, since it is smaller than the sum of its proper divisors (68062624).

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

47180224 is a wasteful number, since it uses less digits than its factorization.

47180224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8133 (or 8123 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 47180224 is about 6868.7862100956. The cubic root of 47180224 is about 361.3432941916.

Adding to 47180224 its reverse (42208174), we get a palindrome (89388398).

The spelling of 47180224 in words is "forty-seven million, one hundred eighty thousand, two hundred twenty-four".