491719354 has 16 divisors (see below), whose sum is σ = 887313600. Its totient is φ = 199645344.

The previous prime is 491719343. The next prime is 491719399. The reversal of 491719354 is 453917194.

It is a self number, because there is not a number n which added to its sum of digits gives 491719354.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 924019 + ... + 924550.

It is an arithmetic number, because the mean of its divisors is an integer number (55457100).

Almost surely, 2^491719354 is an apocalyptic number.

491719354 is a deficient number, since it is larger than the sum of its proper divisors (395594246).

491719354 is a wasteful number, since it uses less digits than its factorization.

491719354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848597.

The product of its digits is 136080, while the sum is 43.

The square root of 491719354 is about 22174.7458610014. The cubic root of 491719354 is about 789.2945440783.

The spelling of 491719354 in words is "four hundred ninety-one million, seven hundred nineteen thousand, three hundred fifty-four".