720255330 has 24 divisors (see below), whose sum is σ = 1872664092. Its totient is φ = 192068064.

The previous prime is 720255259. The next prime is 720255359. The reversal of 720255330 is 33552027.

It can be written as a sum of positive squares in 2 ways, for example, as 711128889 + 9126441 = 26667^2 + 3021^2 .

It is a junction number, because it is equal to n+sod(n) for n = 720255294 and 720255303.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4001329 + ... + 4001508.

Almost surely, 2^720255330 is an apocalyptic number.

720255330 is an abundant number, since it is smaller than the sum of its proper divisors (1152408762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

720255330 is a wasteful number, since it uses less digits than its factorization.

720255330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8002850 (or 8002847 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 720255330 is about 26837.5731019032. The cubic root of 720255330 is about 896.3868846672.

The spelling of 720255330 in words is "seven hundred twenty million, two hundred fifty-five thousand, three hundred thirty".