47215224 has 120 divisors (see below), whose sum is σ = 153941040. Its totient is φ = 13480992.

The previous prime is 47215211. The next prime is 47215229. The reversal of 47215224 is 42251274.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47215229) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 31009 + ... + 32495.

It is an arithmetic number, because the mean of its divisors is an integer number (1282842).

Almost surely, 2^47215224 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 47215224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76970520).

47215224 is an abundant number, since it is smaller than the sum of its proper divisors (106725816).

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

47215224 is a wasteful number, since it uses less digits than its factorization.

47215224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519 (or 1499 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 47215224 is about 6871.3334950357. Note that the first 3 decimals coincide. The cubic root of 47215224 is about 361.4326246227.

Adding to 47215224 its reverse (42251274), we get a palindrome (89466498).

The spelling of 47215224 in words is "forty-seven million, two hundred fifteen thousand, two hundred twenty-four".