491525382 has 8 divisors (see below), whose sum is σ = 983050776. Its totient is φ = 163841792.

The previous prime is 491525381. The next prime is 491525407. The reversal of 491525382 is 283525194.

It is a sphenic number, since it is the product of 3 distinct primes.

491525382 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 491525382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491525381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40960443 + ... + 40960454.

It is an arithmetic number, because the mean of its divisors is an integer number (122881347).

Almost surely, 2^491525382 is an apocalyptic number.

491525382 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

491525382 is a wasteful number, since it uses less digits than its factorization.

491525382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81920902.

The product of its digits is 86400, while the sum is 39.

The square root of 491525382 is about 22170.3717154224. The cubic root of 491525382 is about 789.1907442339.

The spelling of 491525382 in words is "four hundred ninety-one million, five hundred twenty-five thousand, three hundred eighty-two".