49805000 has 80 divisors (see below), whose sum is σ = 133457280. Its totient is φ = 17064000.

The previous prime is 49804991. The next prime is 49805011. The reversal of 49805000 is 50894.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 34289 + ... + 35711.

It is an arithmetic number, because the mean of its divisors is an integer number (1668216).

Almost surely, 2^49805000 is an apocalyptic number.

49805000 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 49805000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66728640).

49805000 is an abundant number, since it is smaller than the sum of its proper divisors (83652280).

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

49805000 is a wasteful number, since it uses less digits than its factorization.

49805000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456 (or 1437 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 49805000 is about 7057.2657594850. The cubic root of 49805000 is about 367.9236018154.

Adding to 49805000 its reverse (50894), we get a palindrome (49855894).

The spelling of 49805000 in words is "forty-nine million, eight hundred five thousand".