47981420 has 24 divisors (see below), whose sum is σ = 101031504. Its totient is φ = 19141056.

The previous prime is 47981419. The next prime is 47981431. The reversal of 47981420 is 2418974.

47981420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 4919 + ... + 10961.

It is an arithmetic number, because the mean of its divisors is an integer number (4209646).

Almost surely, 2^47981420 is an apocalyptic number.

It is an amenable number.

47981420 is an abundant number, since it is smaller than the sum of its proper divisors (53050084).

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

47981420 is a wasteful number, since it uses less digits than its factorization.

47981420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6449 (or 6447 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 47981420 is about 6926.8622044906. The cubic root of 47981420 is about 363.3772207084.

The spelling of 47981420 in words is "forty-seven million, nine hundred eighty-one thousand, four hundred twenty".