47681740 has 24 divisors (see below), whose sum is σ = 100279872. Its totient is φ = 19044480.

The previous prime is 47681731. The next prime is 47681747. The reversal of 47681740 is 4718674.

47681740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 47681740.

It is not an unprimeable number, because it can be changed into a prime (47681747) 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 7 ways as a sum of consecutive naturals, for example, 16912 + ... + 19528.

It is an arithmetic number, because the mean of its divisors is an integer number (4178328).

Almost surely, 2^47681740 is an apocalyptic number.

It is an amenable number.

47681740 is an abundant number, since it is smaller than the sum of its proper divisors (52598132).

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

47681740 is a wasteful number, since it uses less digits than its factorization.

47681740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3537 (or 3535 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 47681740 is about 6905.1965938704. The cubic root of 47681740 is about 362.6191189978.

The spelling of 47681740 in words is "forty-seven million, six hundred eighty-one thousand, seven hundred forty".