47081438 has 8 divisors (see below), whose sum is σ = 70749288. Its totient is φ = 23498344.

The previous prime is 47081429. The next prime is 47081443. The reversal of 47081438 is 83418074.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 47081398 and 47081407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19781 + ... + 22032.

It is an arithmetic number, because the mean of its divisors is an integer number (8843661).

Almost surely, 2^47081438 is an apocalyptic number.

47081438 is a deficient number, since it is larger than the sum of its proper divisors (23667850).

47081438 is a wasteful number, since it uses less digits than its factorization.

47081438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42378.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 47081438 is about 6861.5915063489. The cubic root of 47081438 is about 361.0909243223.

The spelling of 47081438 in words is "forty-seven million, eighty-one thousand, four hundred thirty-eight".