50128428 has 24 divisors (see below), whose sum is σ = 133676032. Its totient is φ = 14322384.

The previous prime is 50128417. The next prime is 50128439. The reversal of 50128428 is 82482105.

It is an interprime number because it is at equal distance from previous prime (50128417) and next prime (50128439).

It is a junction number, because it is equal to n+sod(n) for n = 50128395 and 50128404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298300 + ... + 298467.

Almost surely, 2^50128428 is an apocalyptic number.

It is an amenable number.

50128428 is an abundant number, since it is smaller than the sum of its proper divisors (83547604).

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

50128428 is a wasteful number, since it uses less digits than its factorization.

50128428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596781 (or 596779 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 50128428 is about 7080.1432188904. The cubic root of 50128428 is about 368.7183020536.

The spelling of 50128428 in words is "fifty million, one hundred twenty-eight thousand, four hundred twenty-eight".