49539880 has 64 divisors (see below), whose sum is σ = 122653440. Its totient is φ = 17893632.

The previous prime is 49539871. The next prime is 49539883. The reversal of 49539880 is 8893594.

It is a self number, because there is not a number n which added to its sum of digits gives 49539880.

It is not an unprimeable number, because it can be changed into a prime (49539883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23427 + ... + 25453.

It is an arithmetic number, because the mean of its divisors is an integer number (1916460).

Almost surely, 2^49539880 is an apocalyptic number.

49539880 is a gapful number since it is divisible by the number (40) 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 49539880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61326720).

49539880 is an abundant number, since it is smaller than the sum of its proper divisors (73113560).

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

49539880 is a wasteful number, since it uses less digits than its factorization.

49539880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098 (or 2094 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 49539880 is about 7038.4572173169. The cubic root of 49539880 is about 367.2696012157.

The spelling of 49539880 in words is "forty-nine million, five hundred thirty-nine thousand, eight hundred eighty".