49857808 has 120 divisors (see below), whose sum is σ = 131144384. Its totient is φ = 17867520.

The previous prime is 49857803. The next prime is 49857809. The reversal of 49857808 is 80875894.

It is not an unprimeable number, because it can be changed into a prime (49857803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176035 + ... + 176317.

Almost surely, 2^49857808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49857808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65572192).

49857808 is an abundant number, since it is smaller than the sum of its proper divisors (81286576).

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

49857808 is a wasteful number, since it uses less digits than its factorization.

49857808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 49.

The square root of 49857808 is about 7061.0061605978. The cubic root of 49857808 is about 368.0535917540.

The spelling of 49857808 in words is "forty-nine million, eight hundred fifty-seven thousand, eight hundred eight".