491294426 has 8 divisors (see below), whose sum is σ = 842219040. Its totient is φ = 210554748.

The previous prime is 491294413. The next prime is 491294429. The reversal of 491294426 is 624492194.

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

It is not an unprimeable number, because it can be changed into a prime (491294429) 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, 17546216 + ... + 17546243.

It is an arithmetic number, because the mean of its divisors is an integer number (105277380).

Almost surely, 2^491294426 is an apocalyptic number.

491294426 is a deficient number, since it is larger than the sum of its proper divisors (350924614).

491294426 is a wasteful number, since it uses less digits than its factorization.

491294426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35092468.

The product of its digits is 124416, while the sum is 41.

The square root of 491294426 is about 22165.1624401898. The cubic root of 491294426 is about 789.0671175949.

The spelling of 491294426 in words is "four hundred ninety-one million, two hundred ninety-four thousand, four hundred twenty-six".