47381378 has 8 divisors (see below), whose sum is σ = 77533200. Its totient is φ = 21536980.

The previous prime is 47381371. The next prime is 47381401. The reversal of 47381378 is 87318374.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47381371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1076828 + ... + 1076871.

It is an arithmetic number, because the mean of its divisors is an integer number (9691650).

Almost surely, 2^47381378 is an apocalyptic number.

47381378 is a deficient number, since it is larger than the sum of its proper divisors (30151822).

47381378 is a wasteful number, since it uses less digits than its factorization.

47381378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153712.

The product of its digits is 112896, while the sum is 41.

The square root of 47381378 is about 6883.4132521591. The cubic root of 47381378 is about 361.8560979883.

It can be divided in two parts, 4738 and 1378, that added together give a palindrome (6116).

The spelling of 47381378 in words is "forty-seven million, three hundred eighty-one thousand, three hundred seventy-eight".