57428850 has 48 divisors (see below), whose sum is σ = 143928288. Its totient is φ = 15152640.

The previous prime is 57428837. The next prime is 57428851. The reversal of 57428850 is 5882475.

It is a junction number, because it is equal to n+sod(n) for n = 57428799 and 57428808.

It is not an unprimeable number, because it can be changed into a prime (57428851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12577 + ... + 16523.

It is an arithmetic number, because the mean of its divisors is an integer number (2998506).

Almost surely, 2^57428850 is an apocalyptic number.

57428850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 57428850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71964144).

57428850 is an abundant number, since it is smaller than the sum of its proper divisors (86499438).

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

57428850 is a wasteful number, since it uses less digits than its factorization.

57428850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4059 (or 4054 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 57428850 is about 7578.1824997819. The cubic root of 57428850 is about 385.8128662391.

The spelling of 57428850 in words is "fifty-seven million, four hundred twenty-eight thousand, eight hundred fifty".