57612330 has 128 divisors (see below), whose sum is σ = 161971200. Its totient is φ = 14556672.

The previous prime is 57612323. The next prime is 57612341. The reversal of 57612330 is 3321675.

It is a happy number.

57612330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57612294 and 57612303.

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 63 ways as a sum of consecutive naturals, for example, 729231 + ... + 729309.

It is an arithmetic number, because the mean of its divisors is an integer number (1265400).

Almost surely, 2^57612330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57612330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80985600).

57612330 is an abundant number, since it is smaller than the sum of its proper divisors (104358870).

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

57612330 is a wasteful number, since it uses less digits than its factorization.

57612330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 57612330 is about 7590.2786510114. The cubic root of 57612330 is about 386.2233085524.

The spelling of 57612330 in words is "fifty-seven million, six hundred twelve thousand, three hundred thirty".