50791428 has 48 divisors (see below), whose sum is σ = 134756160. Its totient is φ = 16535232.

The previous prime is 50791409. The next prime is 50791453. The reversal of 50791428 is 82419705.

50791428 is a `hidden beast` number, since 507 + 9 + 142 + 8 = 666.

It is a super-3 number, since 3×50791428³ (a number of 24 digits) contains 333 as substring.

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 = 50791392 and 50791401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 825 + ... + 10112.

It is an arithmetic number, because the mean of its divisors is an integer number (2807420).

Almost surely, 2^50791428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50791428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67378080).

50791428 is an abundant number, since it is smaller than the sum of its proper divisors (83964732).

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

50791428 is a wasteful number, since it uses less digits than its factorization.

50791428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10993 (or 10985 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 50791428 is about 7126.8105068116. The cubic root of 50791428 is about 370.3367472346.

The spelling of 50791428 in words is "fifty million, seven hundred ninety-one thousand, four hundred twenty-eight".