721450034 has 8 divisors (see below), whose sum is σ = 1082421120. Its totient is φ = 360642996.

The previous prime is 721450033. The next prime is 721450049. The reversal of 721450034 is 430054127.

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

It is a junction number, because it is equal to n+sod(n) for n = 721449985 and 721450012.

It is not an unprimeable number, because it can be changed into a prime (721450033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29354 + ... + 48005.

It is an arithmetic number, because the mean of its divisors is an integer number (135302640).

Almost surely, 2^721450034 is an apocalyptic number.

721450034 is a deficient number, since it is larger than the sum of its proper divisors (360971086).

721450034 is a wasteful number, since it uses less digits than its factorization.

721450034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82024.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 721450034 is about 26859.8219279280. The cubic root of 721450034 is about 896.8822300348.

The spelling of 721450034 in words is "seven hundred twenty-one million, four hundred fifty thousand, thirty-four".