47478142 has 8 divisors (see below), whose sum is σ = 72561096. Its totient is φ = 23291112.

The previous prime is 47478121. The next prime is 47478157. The reversal of 47478142 is 24187474.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223848 + ... + 224059.

It is an arithmetic number, because the mean of its divisors is an integer number (9070137).

Almost surely, 2^47478142 is an apocalyptic number.

47478142 is a deficient number, since it is larger than the sum of its proper divisors (25082954).

47478142 is a wasteful number, since it uses less digits than its factorization.

47478142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447962.

The product of its digits is 50176, while the sum is 37.

The square root of 47478142 is about 6890.4384475881. The cubic root of 47478142 is about 362.1022624512.

The spelling of 47478142 in words is "forty-seven million, four hundred seventy-eight thousand, one hundred forty-two".