49311808 has 56 divisors (see below), whose sum is σ = 120448832. Its totient is φ = 19505664.

The previous prime is 49311797. The next prime is 49311809. The reversal of 49311808 is 80811394.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (49311809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1591 + ... + 10057.

It is an arithmetic number, because the mean of its divisors is an integer number (2150872).

Almost surely, 2^49311808 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 49311808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60224416).

49311808 is an abundant number, since it is smaller than the sum of its proper divisors (71137024).

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

49311808 is a wasteful number, since it uses less digits than its factorization.

49311808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8499 (or 8489 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 49311808 is about 7022.2366807165. The cubic root of 49311808 is about 366.7051214030.

The spelling of 49311808 in words is "forty-nine million, three hundred eleven thousand, eight hundred eight".