57300030 has 72 divisors (see below), whose sum is σ = 158330952. Its totient is φ = 14374656.

The previous prime is 57300017. The next prime is 57300041. The reversal of 57300030 is 3000375.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57299976 and 57300012.

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, 24909 + ... + 27111.

It is an arithmetic number, because the mean of its divisors is an integer number (2199041).

Almost surely, 2^57300030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57300030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79165476).

57300030 is an abundant number, since it is smaller than the sum of its proper divisors (101030922).

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

57300030 is a wasteful number, since it uses less digits than its factorization.

57300030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250 (or 2230 counting only the distinct ones).

The product of its (nonzero) digits is 315, while the sum is 18.

The square root of 57300030 is about 7569.6783287006. The cubic root of 57300030 is about 385.5241749792.

The spelling of 57300030 in words is "fifty-seven million, three hundred thousand, thirty".