47224224 has 36 divisors (see below), whose sum is σ = 134294706. Its totient is φ = 15741312.

The previous prime is 47224217. The next prime is 47224231. The reversal of 47224224 is 42242274.

It is an interprime number because it is at equal distance from previous prime (47224217) and next prime (47224231).

It can be written as a sum of positive squares in only one way, i.e., 45319824 + 1904400 = 6732^2 + 1380^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81699 + ... + 82274.

Almost surely, 2^47224224 is an apocalyptic number.

It is an amenable number.

47224224 is an abundant number, since it is smaller than the sum of its proper divisors (87070482).

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

47224224 is a wasteful number, since it uses less digits than its factorization.

47224224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163989 (or 163978 counting only the distinct ones).

The product of its digits is 7168, while the sum is 27.

The square root of 47224224 is about 6871.9883585466. The cubic root of 47224224 is about 361.4555881690.

Adding to 47224224 its reverse (42242274), we get a palindrome (89466498).

The spelling of 47224224 in words is "forty-seven million, two hundred twenty-four thousand, two hundred twenty-four".