491487342 has 8 divisors (see below), whose sum is σ = 982974696. Its totient is φ = 163829112.

The previous prime is 491487341. The next prime is 491487379. The reversal of 491487342 is 243784194.

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

491487342 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 491487294 and 491487303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491487341) 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, 40957273 + ... + 40957284.

It is an arithmetic number, because the mean of its divisors is an integer number (122871837).

Almost surely, 2^491487342 is an apocalyptic number.

491487342 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.

491487342 is a wasteful number, since it uses less digits than its factorization.

491487342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81914562.

The product of its digits is 193536, while the sum is 42.

The square root of 491487342 is about 22169.5137971043. The cubic root of 491487342 is about 789.1703847628.

The spelling of 491487342 in words is "four hundred ninety-one million, four hundred eighty-seven thousand, three hundred forty-two".