49267728 has 60 divisors (see below), whose sum is σ = 138793200. Its totient is φ = 16314048.

The previous prime is 49267693. The next prime is 49267739. The reversal of 49267728 is 82776294.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22423 + ... + 24521.

It is an arithmetic number, because the mean of its divisors is an integer number (2313220).

It is a vampire number, since it can be written as 6297 ⋅ 7824 (with its own digits).

Almost surely, 2^49267728 is an apocalyptic number.

49267728 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 49267728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69396600).

49267728 is an abundant number, since it is smaller than the sum of its proper divisors (89525472).

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

49267728 is a wasteful number, since it uses less digits than its factorization.

49267728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276 (or 2267 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 49267728 is about 7019.0973778685. The cubic root of 49267728 is about 366.5958224930.

The spelling of 49267728 in words is "forty-nine million, two hundred sixty-seven thousand, seven hundred twenty-eight".