47946318 has 32 divisors (see below), whose sum is σ = 109939200. Its totient is φ = 13655520.

The previous prime is 47946313. The next prime is 47946319. The reversal of 47946318 is 81364974.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47946318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47946313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13023 + ... + 16293.

It is an arithmetic number, because the mean of its divisors is an integer number (3435600).

Almost surely, 2^47946318 is an apocalyptic number.

47946318 is an abundant number, since it is smaller than the sum of its proper divisors (61992882).

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

47946318 is a wasteful number, since it uses less digits than its factorization.

47946318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3632.

The product of its digits is 145152, while the sum is 42.

The square root of 47946318 is about 6924.3279818333. The cubic root of 47946318 is about 363.2885865458.

The spelling of 47946318 in words is "forty-seven million, nine hundred forty-six thousand, three hundred eighteen".