57030420 has 24 divisors (see below), whose sum is σ = 159685344. Its totient is φ = 15208096.

The previous prime is 57030397. The next prime is 57030437. The reversal of 57030420 is 2403075.

It is a happy number.

57030420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 475194 + ... + 475313.

It is an arithmetic number, because the mean of its divisors is an integer number (6653556).

Almost surely, 2^57030420 is an apocalyptic number.

It is an amenable number.

57030420 is an abundant number, since it is smaller than the sum of its proper divisors (102654924).

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

57030420 is a wasteful number, since it uses less digits than its factorization.

57030420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950519 (or 950517 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 57030420 is about 7551.8487802657. The cubic root of 57030420 is about 384.9185637617.

Adding to 57030420 its reverse (2403075), we get a palindrome (59433495).

The spelling of 57030420 in words is "fifty-seven million, thirty thousand, four hundred twenty".