49864128 has 56 divisors (see below), whose sum is σ = 139702032. Its totient is φ = 15642624.

The previous prime is 49864127. The next prime is 49864163. The reversal of 49864128 is 82146894.

It is a super-2 number, since 2×49864128² = 4972862522400768, 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 49864128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49864127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4375 + ... + 10902.

Almost surely, 2^49864128 is an apocalyptic number.

49864128 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

49864128 is an abundant number, since it is smaller than the sum of its proper divisors (89837904).

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

49864128 is a wasteful number, since it uses less digits than its factorization.

49864128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15309 (or 15299 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 49864128 is about 7061.4536747047. The cubic root of 49864128 is about 368.0691426477.

The spelling of 49864128 in words is "forty-nine million, eight hundred sixty-four thousand, one hundred twenty-eight".