49316640 has 96 divisors (see below), whose sum is σ = 156764160. Its totient is φ = 13031424.

The previous prime is 49316639. The next prime is 49316651. The reversal of 49316640 is 4661394.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60556 + ... + 61364.

It is an arithmetic number, because the mean of its divisors is an integer number (1632960).

Almost surely, 2^49316640 is an apocalyptic number.

49316640 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 49316640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78382080).

49316640 is an abundant number, since it is smaller than the sum of its proper divisors (107447520).

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

49316640 is a wasteful number, since it uses less digits than its factorization.

49316640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954 (or 946 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 49316640 is about 7022.5807222132. The cubic root of 49316640 is about 366.7170986646.

The spelling of 49316640 in words is "forty-nine million, three hundred sixteen thousand, six hundred forty".