47281018 has 8 divisors (see below), whose sum is σ = 71120160. Its totient is φ = 23574300.

The previous prime is 47280979. The next prime is 47281027. The reversal of 47281018 is 81018274.

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

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, 32208 + ... + 33643.

It is an arithmetic number, because the mean of its divisors is an integer number (8890020).

Almost surely, 2^47281018 is an apocalyptic number.

47281018 is a deficient number, since it is larger than the sum of its proper divisors (23839142).

47281018 is a wasteful number, since it uses less digits than its factorization.

47281018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66212.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 47281018 is about 6876.1193997778. The cubic root of 47281018 is about 361.6004310973.

The spelling of 47281018 in words is "forty-seven million, two hundred eighty-one thousand, eighteen".