491532454 has 8 divisors (see below), whose sum is σ = 842627088. Its totient is φ = 210656760.

The previous prime is 491532409. The next prime is 491532467. The reversal of 491532454 is 454235194.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17554717 + ... + 17554744.

It is an arithmetic number, because the mean of its divisors is an integer number (105328386).

Almost surely, 2^491532454 is an apocalyptic number.

491532454 is a deficient number, since it is larger than the sum of its proper divisors (351094634).

491532454 is a wasteful number, since it uses less digits than its factorization.

491532454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35109470.

The product of its digits is 86400, while the sum is 37.

The square root of 491532454 is about 22170.5312069874. The cubic root of 491532454 is about 789.1945291386.

The spelling of 491532454 in words is "four hundred ninety-one million, five hundred thirty-two thousand, four hundred fifty-four".