47450218 has 8 divisors (see below), whose sum is σ = 71239140. Its totient is φ = 23703840.

The previous prime is 47450191. The next prime is 47450237. The reversal of 47450218 is 81205474.

It can be written as a sum of positive squares in 2 ways, for example, as 47375689 + 74529 = 6883^2 + 273^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 47450218.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7683 + ... + 12406.

Almost surely, 2^47450218 is an apocalyptic number.

47450218 is a deficient number, since it is larger than the sum of its proper divisors (23788922).

47450218 is a wasteful number, since it uses less digits than its factorization.

47450218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21272.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 47450218 is about 6888.4118634123. The cubic root of 47450218 is about 362.0312590652.

The spelling of 47450218 in words is "forty-seven million, four hundred fifty thousand, two hundred eighteen".