720520234 has 8 divisors (see below), whose sum is σ = 1235177568. Its totient is φ = 308794380.

The previous prime is 720520217. The next prime is 720520253. The reversal of 720520234 is 432025027.

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 = 720520199 and 720520208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25732852 + ... + 25732879.

It is an arithmetic number, because the mean of its divisors is an integer number (154397196).

Almost surely, 2^720520234 is an apocalyptic number.

720520234 is a deficient number, since it is larger than the sum of its proper divisors (514657334).

720520234 is a wasteful number, since it uses less digits than its factorization.

720520234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51465740.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 720520234 is about 26842.5079677738. The cubic root of 720520234 is about 896.4967657773.

The spelling of 720520234 in words is "seven hundred twenty million, five hundred twenty thousand, two hundred thirty-four".