494221443 has 4 divisors (see below), whose sum is σ = 658961928. Its totient is φ = 329480960.

The previous prime is 494221439. The next prime is 494221459. The reversal of 494221443 is 344122494.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 494221443 - 2² = 494221439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (494221463) 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, 82370238 + ... + 82370243.

It is an arithmetic number, because the mean of its divisors is an integer number (164740482).

Almost surely, 2^494221443 is an apocalyptic number.

494221443 is a deficient number, since it is larger than the sum of its proper divisors (164740485).

494221443 is a wasteful number, since it uses less digits than its factorization.

494221443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164740484.

The product of its digits is 27648, while the sum is 33.

The square root of 494221443 is about 22231.0918085460. The cubic root of 494221443 is about 790.6310414907.

The spelling of 494221443 in words is "four hundred ninety-four million, two hundred twenty-one thousand, four hundred forty-three".