47305944 has 80 divisors (see below), whose sum is σ = 151443600. Its totient is φ = 13514688.

The previous prime is 47305939. The next prime is 47305949. The reversal of 47305944 is 44950374.

47305944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (47305939) and next prime (47305949).

It is a super-2 number, since 2×47305944² = 4475704675462272, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 47305899 and 47305908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47305949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 679 + ... + 9750.

It is an arithmetic number, because the mean of its divisors is an integer number (1893045).

Almost surely, 2^47305944 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 47305944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75721800).

47305944 is an abundant number, since it is smaller than the sum of its proper divisors (104137656).

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

47305944 is a wasteful number, since it uses less digits than its factorization.

47305944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10454 (or 10441 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 47305944 is about 6877.9316658426. The cubic root of 47305944 is about 361.6639637741.

The spelling of 47305944 in words is "forty-seven million, three hundred five thousand, nine hundred forty-four".