57844042 has 4 divisors (see below), whose sum is σ = 86766066. Its totient is φ = 28922020.

The previous prime is 57844027. The next prime is 57844049. The reversal of 57844042 is 24044875.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 49829481 + 8014561 = 7059^2 + 2831^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57843989 and 57844007.

It is not an unprimeable number, because it can be changed into a prime (57844049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14461009 + ... + 14461012.

Almost surely, 2^57844042 is an apocalyptic number.

57844042 is a deficient number, since it is larger than the sum of its proper divisors (28922024).

57844042 is a wasteful number, since it uses less digits than its factorization.

57844042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28922023.

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 57844042 is about 7605.5270691780. The cubic root of 57844042 is about 386.7404019443.

The spelling of 57844042 in words is "fifty-seven million, eight hundred forty-four thousand, forty-two".