57840436 has 12 divisors (see below), whose sum is σ = 101465280. Its totient is φ = 28850360.

The previous prime is 57840401. The next prime is 57840439. The reversal of 57840436 is 63404875.

57840436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 57840395 and 57840404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57840439) 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 3 ways as a sum of consecutive naturals, for example, 15580 + ... + 18931.

It is an arithmetic number, because the mean of its divisors is an integer number (8455440).

Almost surely, 2^57840436 is an apocalyptic number.

It is an amenable number.

57840436 is a deficient number, since it is larger than the sum of its proper divisors (43624844).

57840436 is a wasteful number, since it uses less digits than its factorization.

57840436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34934 (or 34932 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 57840436 is about 7605.2900010453. The cubic root of 57840436 is about 386.7323653063.

It can be divided in two parts, 578 and 40436, that added together give a palindrome (41014).

The spelling of 57840436 in words is "fifty-seven million, eight hundred forty thousand, four hundred thirty-six".