720258 has 32 divisors (see below), whose sum is σ = 1797120. Its totient is φ = 186960.

The previous prime is 720257. The next prime is 720281. The reversal of 720258 is 852027.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 720258.

It is not an unprimeable number, because it can be changed into a prime (720253) 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 15 ways as a sum of consecutive naturals, for example, 318 + ... + 1241.

It is an arithmetic number, because the mean of its divisors is an integer number (56160).

2⁷²⁰²⁵⁸ is an apocalyptic number.

720258 is an abundant number, since it is smaller than the sum of its proper divisors (1076862).

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

720258 is a wasteful number, since it uses less digits than its factorization.

720258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 720258 is about 848.6801517651. The cubic root of 720258 is about 89.6387992307.

Subtracting 720258 from its reverse (852027), we obtain a square (131769 = 363²).

It can be divided in two parts, 7202 and 58, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 720258 in words is "seven hundred twenty thousand, two hundred fifty-eight".