47270138 has 8 divisors (see below), whose sum is σ = 74637120. Its totient is φ = 22391100.

The previous prime is 47270131. The next prime is 47270143. The reversal of 47270138 is 83107274.

It is a happy number.

47270138 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 not an unprimeable number, because it can be changed into a prime (47270131) 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, 621938 + ... + 622013.

It is an arithmetic number, because the mean of its divisors is an integer number (9329640).

Almost surely, 2^47270138 is an apocalyptic number.

47270138 is a deficient number, since it is larger than the sum of its proper divisors (27366982).

47270138 is a wasteful number, since it uses less digits than its factorization.

47270138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243972.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 47270138 is about 6875.3282103475. The cubic root of 47270138 is about 361.5726925906.

The spelling of 47270138 in words is "forty-seven million, two hundred seventy thousand, one hundred thirty-eight".