57845409 has 8 divisors (see below), whose sum is σ = 77450880. Its totient is φ = 38401776.

The previous prime is 57845399. The next prime is 57845413. The reversal of 57845409 is 90454875.

57845409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 57845409 - 2¹¹ = 57843361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57845479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39622 + ... + 41055.

It is an arithmetic number, because the mean of its divisors is an integer number (9681360).

Almost surely, 2^57845409 is an apocalyptic number.

It is an amenable number.

57845409 is a deficient number, since it is larger than the sum of its proper divisors (19605471).

57845409 is a wasteful number, since it uses less digits than its factorization.

57845409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80919.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 57845409 is about 7605.6169375009. The cubic root of 57845409 is about 386.7434484693.

The spelling of 57845409 in words is "fifty-seven million, eight hundred forty-five thousand, four hundred nine".