49986128 has 20 divisors (see below), whose sum is σ = 97056288. Its totient is φ = 24939360.

The previous prime is 49986127. The next prime is 49986151. The reversal of 49986128 is 82168994.

It is a super-2 number, since 2×49986128² = 4997225984864768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49986121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4943 + ... + 11153.

Almost surely, 2^49986128 is an apocalyptic number.

It is an amenable number.

49986128 is a deficient number, since it is larger than the sum of its proper divisors (47070160).

49986128 is a wasteful number, since it uses less digits than its factorization.

49986128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6722 (or 6716 counting only the distinct ones).

The product of its digits is 248832, while the sum is 47.

The square root of 49986128 is about 7070.0868452941. The cubic root of 49986128 is about 368.3690767895.

The spelling of 49986128 in words is "forty-nine million, nine hundred eighty-six thousand, one hundred twenty-eight".