57286449 has 24 divisors (see below), whose sum is σ = 92375712. Its totient is φ = 33909120.

The previous prime is 57286441. The next prime is 57286451. The reversal of 57286449 is 94468275.

It is a happy number.

It is not a de Polignac number, because 57286449 - 2³ = 57286441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57286441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2472 + ... + 10985.

It is an arithmetic number, because the mean of its divisors is an integer number (3848988).

Almost surely, 2^57286449 is an apocalyptic number.

It is an amenable number.

57286449 is a deficient number, since it is larger than the sum of its proper divisors (35089263).

57286449 is a wasteful number, since it uses less digits than its factorization.

57286449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13517 (or 13514 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 57286449 is about 7568.7812096797. The cubic root of 57286449 is about 385.4937141601.

The spelling of 57286449 in words is "fifty-seven million, two hundred eighty-six thousand, four hundred forty-nine".