57147378 has 8 divisors (see below), whose sum is σ = 114294768. Its totient is φ = 19049124.

The previous prime is 57147367. The next prime is 57147379. The reversal of 57147378 is 87374175.

It is a happy number.

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

57147378 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (57147379) 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, 4762276 + ... + 4762287.

It is an arithmetic number, because the mean of its divisors is an integer number (14286846).

Almost surely, 2^57147378 is an apocalyptic number.

57147378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57147378 is a wasteful number, since it uses less digits than its factorization.

57147378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9524568.

The product of its digits is 164640, while the sum is 42.

The square root of 57147378 is about 7559.5884808632. The cubic root of 57147378 is about 385.1815144536.

The spelling of 57147378 in words is "fifty-seven million, one hundred forty-seven thousand, three hundred seventy-eight".