47421542 has 8 divisors (see below), whose sum is σ = 81294096. Its totient is φ = 20323512.

The previous prime is 47421541. The next prime is 47421547. The reversal of 47421542 is 24512474.

47421542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47421541) 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 3 ways as a sum of consecutive naturals, for example, 1693613 + ... + 1693640.

It is an arithmetic number, because the mean of its divisors is an integer number (10161762).

Almost surely, 2^47421542 is an apocalyptic number.

47421542 is a deficient number, since it is larger than the sum of its proper divisors (33872554).

47421542 is a wasteful number, since it uses less digits than its factorization.

47421542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3387262.

The product of its digits is 8960, while the sum is 29.

The square root of 47421542 is about 6886.3300821265. The cubic root of 47421542 is about 361.9583145431.

The spelling of 47421542 in words is "forty-seven million, four hundred twenty-one thousand, five hundred forty-two".