47473140 has 144 divisors (see below), whose sum is σ = 157659264. Its totient is φ = 10602240.

The previous prime is 47473133. The next prime is 47473147. The reversal of 47473140 is 4137474.

47473140 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 (47473133) and next prime (47473147).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 47473098 and 47473107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47473147) 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 47 ways as a sum of consecutive naturals, for example, 94129 + ... + 94631.

It is an arithmetic number, because the mean of its divisors is an integer number (1094856).

Almost surely, 2^47473140 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 47473140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78829632).

47473140 is an abundant number, since it is smaller than the sum of its proper divisors (110186124).

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

47473140 is a wasteful number, since it uses less digits than its factorization.

47473140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 47473140 is about 6890.0754712848. The cubic root of 47473140 is about 362.0895457283.

It can be divided in two parts, 4747 and 3140, that added together give a palindrome (7887).

The spelling of 47473140 in words is "forty-seven million, four hundred seventy-three thousand, one hundred forty".