491648352 has 96 divisors (see below), whose sum is σ = 1416266208. Its totient is φ = 148402176.

The previous prime is 491648327. The next prime is 491648359. The reversal of 491648352 is 253846194.

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

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491648359) 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, 62428 + ... + 69860.

It is an arithmetic number, because the mean of its divisors is an integer number (14752773).

Almost surely, 2^491648352 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 491648352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (708133104).

491648352 is an abundant number, since it is smaller than the sum of its proper divisors (924617856).

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

491648352 is a wasteful number, since it uses less digits than its factorization.

491648352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7512 (or 7504 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 491648352 is about 22173.1448378438. The cubic root of 491648352 is about 789.2565520893.

The spelling of 491648352 in words is "four hundred ninety-one million, six hundred forty-eight thousand, three hundred fifty-two".