49986728 has 32 divisors (see below), whose sum is σ = 106695360. Its totient is φ = 21732480.

The previous prime is 49986707. The next prime is 49986733. The reversal of 49986728 is 82768994.

It is a super-2 number, since 2×49986728² = 4997345952291968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49986728.

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, 10325 + ... + 14372.

It is an arithmetic number, because the mean of its divisors is an integer number (3334230).

Almost surely, 2^49986728 is an apocalyptic number.

It is an amenable number.

49986728 is an abundant number, since it is smaller than the sum of its proper divisors (56708632).

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

49986728 is a wasteful number, since it uses less digits than its factorization.

49986728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24737 (or 24733 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 53.

The square root of 49986728 is about 7070.1292774602. The cubic root of 49986728 is about 368.3705506688.

The spelling of 49986728 in words is "forty-nine million, nine hundred eighty-six thousand, seven hundred twenty-eight".