57740427 has 6 divisors (see below), whose sum is σ = 83402852. Its totient is φ = 38493612.

The previous prime is 57740407. The next prime is 57740489. The reversal of 57740427 is 72404775.

It is a happy number.

57740427 is a `hidden beast` number, since 577 + 40 + 42 + 7 = 666.

It is not a de Polignac number, because 57740427 - 2⁸ = 57740171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57740391 and 57740400.

It is not an unprimeable number, because it can be changed into a prime (57740407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3207793 + ... + 3207810.

Almost surely, 2^57740427 is an apocalyptic number.

57740427 is a deficient number, since it is larger than the sum of its proper divisors (25662425).

57740427 is a wasteful number, since it uses less digits than its factorization.

57740427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6415609 (or 6415606 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 57740427 is about 7598.7121935233. The cubic root of 57740427 is about 386.5093435326.

The spelling of 57740427 in words is "fifty-seven million, seven hundred forty thousand, four hundred twenty-seven".