57421200 has 120 divisors (see below), whose sum is σ = 186049600. Its totient is φ = 15137280.

The previous prime is 57421183. The next prime is 57421237. The reversal of 57421200 is 212475.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130581 + ... + 131019.

Almost surely, 2^57421200 is an apocalyptic number.

57421200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57421200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93024800).

57421200 is an abundant number, since it is smaller than the sum of its proper divisors (128628400).

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

57421200 is a wasteful number, since it uses less digits than its factorization.

57421200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 558 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 57421200 is about 7577.6777445336. The cubic root of 57421200 is about 385.7957343186.

Adding to 57421200 its reverse (212475), we get a palindrome (57633675).

The spelling of 57421200 in words is "fifty-seven million, four hundred twenty-one thousand, two hundred".