57216234 has 16 divisors (see below), whose sum is σ = 114528672. Its totient is φ = 19056048.

The previous prime is 57216227. The next prime is 57216251. The reversal of 57216234 is 43261275.

57216234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

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, 5437 + ... + 11999.

It is an arithmetic number, because the mean of its divisors is an integer number (7158042).

Almost surely, 2^57216234 is an apocalyptic number.

57216234 is an abundant number, since it is smaller than the sum of its proper divisors (57312438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57216234 is a wasteful number, since it uses less digits than its factorization.

57216234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8021.

The product of its digits is 10080, while the sum is 30.

The square root of 57216234 is about 7564.1413260198. The cubic root of 57216234 is about 385.3361521314.

The spelling of 57216234 in words is "fifty-seven million, two hundred sixteen thousand, two hundred thirty-four".