494080721 has 8 divisors (see below), whose sum is σ = 508979904. Its totient is φ = 479262960.

The previous prime is 494080679. The next prime is 494080751. The reversal of 494080721 is 127080494.

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

It is a cyclic number.

It is not a de Polignac number, because 494080721 - 2¹⁰ = 494079697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494080751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7925 + ... + 32418.

It is an arithmetic number, because the mean of its divisors is an integer number (63622488).

Almost surely, 2^494080721 is an apocalyptic number.

It is an amenable number.

494080721 is a deficient number, since it is larger than the sum of its proper divisors (14899183).

494080721 is a wasteful number, since it uses less digits than its factorization.

494080721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40711.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 494080721 is about 22227.9266014624. The cubic root of 494080721 is about 790.5559943336. Note that the first 3 decimals are identical.

The spelling of 494080721 in words is "four hundred ninety-four million, eighty thousand, seven hundred twenty-one".