47443818 has 16 divisors (see below), whose sum is σ = 95226336. Its totient is φ = 15758160.

The previous prime is 47443813. The next prime is 47443829. The reversal of 47443818 is 81834474.

It is not an unprimeable number, because it can be changed into a prime (47443811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12273 + ... + 15668.

It is an arithmetic number, because the mean of its divisors is an integer number (5951646).

Almost surely, 2^47443818 is an apocalyptic number.

47443818 is an abundant number, since it is smaller than the sum of its proper divisors (47782518).

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

47443818 is a wasteful number, since it uses less digits than its factorization.

47443818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28229.

The product of its digits is 86016, while the sum is 39.

The square root of 47443818 is about 6887.9472994500. The cubic root of 47443818 is about 362.0149816251.

The spelling of 47443818 in words is "forty-seven million, four hundred forty-three thousand, eight hundred eighteen".