721421482 has 8 divisors (see below), whose sum is σ = 1083718656. Its totient is φ = 360181932.

The previous prime is 721421461. The next prime is 721421521. The reversal of 721421482 is 284124127.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262698 + ... + 265429.

It is an arithmetic number, because the mean of its divisors is an integer number (135464832).

Almost surely, 2^721421482 is an apocalyptic number.

721421482 is a deficient number, since it is larger than the sum of its proper divisors (362297174).

721421482 is a wasteful number, since it uses less digits than its factorization.

721421482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528812.

The product of its digits is 7168, while the sum is 31.

The square root of 721421482 is about 26859.2904224963. The cubic root of 721421482 is about 896.8703982524.

The spelling of 721421482 in words is "seven hundred twenty-one million, four hundred twenty-one thousand, four hundred eighty-two".