47046816 has 144 divisors (see below), whose sum is σ = 142702560. Its totient is φ = 14676480.

The previous prime is 47046757. The next prime is 47046817. The reversal of 47046816 is 61864074.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (47046817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 359071 + ... + 359201.

It is an arithmetic number, because the mean of its divisors is an integer number (990990).

Almost surely, 2^47046816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47046816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71351280).

47046816 is an abundant number, since it is smaller than the sum of its proper divisors (95655744).

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

47046816 is a wasteful number, since it uses less digits than its factorization.

47046816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 47046816 is about 6859.0681582851. The cubic root of 47046816 is about 361.0023915148.

The spelling of 47046816 in words is "forty-seven million, forty-six thousand, eight hundred sixteen".