47138038 has 4 divisors (see below), whose sum is σ = 70707060. Its totient is φ = 23569018.

The previous prime is 47138009. The next prime is 47138057. The reversal of 47138038 is 83083174.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 47137994 and 47138012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11784508 + ... + 11784511.

It is an arithmetic number, because the mean of its divisors is an integer number (17676765).

Almost surely, 2^47138038 is an apocalyptic number.

47138038 is a deficient number, since it is larger than the sum of its proper divisors (23569022).

47138038 is a wasteful number, since it uses less digits than its factorization.

47138038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23569021.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 47138038 is about 6865.7146751085. The cubic root of 47138038 is about 361.2355642112.

The spelling of 47138038 in words is "forty-seven million, one hundred thirty-eight thousand, thirty-eight".