50398128 has 60 divisors (see below), whose sum is σ = 153871848. Its totient is φ = 15271680.

The previous prime is 50398121. The next prime is 50398151. The reversal of 50398128 is 82189305.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 50398092 and 50398101.

It is not an unprimeable number, because it can be changed into a prime (50398121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14325 + ... + 17492.

Almost surely, 2^50398128 is an apocalyptic number.

It is an amenable number.

50398128 is an abundant number, since it is smaller than the sum of its proper divisors (103473720).

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

50398128 is a wasteful number, since it uses less digits than its factorization.

50398128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31842 (or 31833 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 50398128 is about 7099.1638944315. The cubic root of 50398128 is about 369.3783767202.

The spelling of 50398128 in words is "fifty million, three hundred ninety-eight thousand, one hundred twenty-eight".