47484140 has 48 divisors (see below), whose sum is σ = 109910304. Its totient is φ = 17088000.

The previous prime is 47484137. The next prime is 47484163. The reversal of 47484140 is 4148474.

47484140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 47484097 and 47484106.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 21152 + ... + 23288.

It is an arithmetic number, because the mean of its divisors is an integer number (2289798).

Almost surely, 2^47484140 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 47484140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54955152).

47484140 is an abundant number, since it is smaller than the sum of its proper divisors (62426164).

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

47484140 is a wasteful number, since it uses less digits than its factorization.

47484140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258 (or 2256 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 47484140 is about 6890.8736746511. The cubic root of 47484140 is about 362.1175101549.

It can be divided in two parts, 4748 and 4140, that added together give a palindrome (8888).

The spelling of 47484140 in words is "forty-seven million, four hundred eighty-four thousand, one hundred forty".