47124418 has 12 divisors (see below), whose sum is σ = 77697270. Its totient is φ = 21420080.

The previous prime is 47124403. The next prime is 47124419. The reversal of 47124418 is 81442174.

It is a happy number.

47124418 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in only one way, i.e., 45468049 + 1656369 = 6743^2 + 1287^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47124418.

It is not an unprimeable number, because it can be changed into a prime (47124419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97123 + ... + 97606.

Almost surely, 2^47124418 is an apocalyptic number.

47124418 is a deficient number, since it is larger than the sum of its proper divisors (30572852).

47124418 is a wasteful number, since it uses less digits than its factorization.

47124418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194753 (or 194742 counting only the distinct ones).

The product of its digits is 7168, while the sum is 31.

The square root of 47124418 is about 6864.7227183623. The cubic root of 47124418 is about 361.2007692238.

The spelling of 47124418 in words is "forty-seven million, one hundred twenty-four thousand, four hundred eighteen".