49870128 has 160 divisors (see below), whose sum is σ = 163418112. Its totient is φ = 12729600.

The previous prime is 49870099. The next prime is 49870133. The reversal of 49870128 is 82107894.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 380623 + ... + 380753.

Almost surely, 2^49870128 is an apocalyptic number.

49870128 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49870128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81709056).

49870128 is an abundant number, since it is smaller than the sum of its proper divisors (113547984).

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

49870128 is a wasteful number, since it uses less digits than its factorization.

49870128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 49870128 is about 7061.8785036278. The cubic root of 49870128 is about 368.0839049386.

The spelling of 49870128 in words is "forty-nine million, eight hundred seventy thousand, one hundred twenty-eight".