57730230 has 72 divisors (see below), whose sum is σ = 157568112. Its totient is φ = 14637216.

The previous prime is 57730219. The next prime is 57730247. The reversal of 57730230 is 3203775.

It is a junction number, because it is equal to n+sod(n) for n = 57730194 and 57730203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 345607 + ... + 345773.

It is an arithmetic number, because the mean of its divisors is an integer number (2188446).

Almost surely, 2^57730230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57730230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78784056).

57730230 is an abundant number, since it is smaller than the sum of its proper divisors (99837882).

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

57730230 is a wasteful number, since it uses less digits than its factorization.

57730230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 27.

The square root of 57730230 is about 7598.0411949397. The cubic root of 57730230 is about 386.4865895858.

The spelling of 57730230 in words is "fifty-seven million, seven hundred thirty thousand, two hundred thirty".