50032728 has 112 divisors (see below), whose sum is σ = 147161520. Its totient is φ = 15909696.

The previous prime is 50032721. The next prime is 50032771. The reversal of 50032728 is 82723005.

It is a super-2 number, since 2×50032728² = 5006547742243968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50032721) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 133950 + ... + 134322.

Almost surely, 2^50032728 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 50032728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73580760).

50032728 is an abundant number, since it is smaller than the sum of its proper divisors (97128792).

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

50032728 is a wasteful number, since it uses less digits than its factorization.

50032728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 50032728 is about 7073.3816523640. The cubic root of 50032728 is about 368.4835129877.

The spelling of 50032728 in words is "fifty million, thirty-two thousand, seven hundred twenty-eight".