47257422 has 8 divisors (see below), whose sum is σ = 94514856. Its totient is φ = 15752472.

The previous prime is 47257393. The next prime is 47257481. The reversal of 47257422 is 22475274.

It is a happy number.

47257422 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.

47257422 is an admirable number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 3938113 + ... + 3938124.

It is an arithmetic number, because the mean of its divisors is an integer number (11814357).

Almost surely, 2^47257422 is an apocalyptic number.

47257422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

47257422 is a wasteful number, since it uses less digits than its factorization.

47257422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7876242.

The product of its digits is 31360, while the sum is 33.

The square root of 47257422 is about 6874.4033922952. The cubic root of 47257422 is about 361.5402678161.

The spelling of 47257422 in words is "forty-seven million, two hundred fifty-seven thousand, four hundred twenty-two".