57493438 has 8 divisors (see below), whose sum is σ = 86819400. Its totient is φ = 28553640.

The previous prime is 57493433. The next prime is 57493441. The reversal of 57493438 is 83439475.

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 = 57493394 and 57493403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57493433) by changing a digit.

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, 96168 + ... + 96763.

It is an arithmetic number, because the mean of its divisors is an integer number (10852425).

Almost surely, 2^57493438 is an apocalyptic number.

57493438 is a deficient number, since it is larger than the sum of its proper divisors (29325962).

57493438 is a wasteful number, since it uses less digits than its factorization.

57493438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193082.

The product of its digits is 362880, while the sum is 43.

The square root of 57493438 is about 7582.4427462395. The cubic root of 57493438 is about 385.9574483059.

The spelling of 57493438 in words is "fifty-seven million, four hundred ninety-three thousand, four hundred thirty-eight".