57729436 has 12 divisors (see below), whose sum is σ = 101155320. Its totient is φ = 28827920.

The previous prime is 57729421. The next prime is 57729437. The reversal of 57729436 is 63492775.

57729436 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 = 57729392 and 57729401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57729437) 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, 5506 + ... + 12073.

It is an arithmetic number, because the mean of its divisors is an integer number (8429610).

Almost surely, 2^57729436 is an apocalyptic number.

It is an amenable number.

57729436 is a deficient number, since it is larger than the sum of its proper divisors (43425884).

57729436 is a wasteful number, since it uses less digits than its factorization.

57729436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18404 (or 18402 counting only the distinct ones).

The product of its digits is 317520, while the sum is 43.

The square root of 57729436 is about 7597.9889444510. The cubic root of 57729436 is about 386.4848177137.

The spelling of 57729436 in words is "fifty-seven million, seven hundred twenty-nine thousand, four hundred thirty-six".