57381429 has 8 divisors (see below), whose sum is σ = 87438400. Its totient is φ = 32789376.

The previous prime is 57381421. The next prime is 57381461. The reversal of 57381429 is 92418375.

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

It is not a de Polignac number, because 57381429 - 2³ = 57381421 is a prime.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57381421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1366204 + ... + 1366245.

It is an arithmetic number, because the mean of its divisors is an integer number (10929800).

Almost surely, 2^57381429 is an apocalyptic number.

It is an amenable number.

57381429 is a deficient number, since it is larger than the sum of its proper divisors (30056971).

57381429 is a wasteful number, since it uses less digits than its factorization.

57381429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732459.

The product of its digits is 60480, while the sum is 39.

The square root of 57381429 is about 7575.0530691210. The cubic root of 57381429 is about 385.7066439599.

The spelling of 57381429 in words is "fifty-seven million, three hundred eighty-one thousand, four hundred twenty-nine".